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Roxee Meds Catalog

Fenbendazole

Medication catalog facts with explicit FDA-approval, off-label, source-limited, and safety context.

Both Catalog complete FDA data linked Rx required Paste Multiple FDA labelers Official label facts Owner quick guide first

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Data freshness

Storefront facts
Catalog refreshed
May 5, 2026, 10:00 a.m.

These are the storefront facts Roxee uses on browse cards and quick facts.

FDA applications
FDA application data refreshed
May 5, 2026, 10:00 a.m.

Sponsor, product, and application records imported from Animal Drugs @ FDA.

Safety reports
Safety data refreshed
May 5, 2026, 10:01 a.m.

openFDA reaction terms and case summaries are supporting evidence, not proof of causality.

Source timing details
Source timing details
  • Storefront facts: Source Roxee | Refreshed May 5, 2026, 10:00 AM UTC
    The storefront fact projection used for browse cards and quick facts.
  • Animal Drugs @ FDA: Source FDA | Refreshed May 5, 2026, 10:00 AM UTC
    Applications/products are imported from FDA export data.
  • Animal Drugs @ FDA previews: Source FDA | Refreshed Feb 9, 2026, 3:05 AM UTC
    Label highlights/doc links are fetched from FDA preview endpoints.
  • openFDA reaction terms: Source FDA openFDA | Refreshed May 5, 2026, 10:04 AM UTC
  • openFDA case summaries: Source FDA openFDA | Refreshed May 5, 2026, 10:04 AM UTC

Evidence

Reviewed / Updated / Sources

Reviewed by: Not available

Last reviewed: February 12, 2026

Updated: February 12, 2026, 10:44 PM UTC

Sources:
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Fenbendazole

Fenbendazole

Drug type: Generic ingredient • Generic profile No FDA branded products linked

Both Paste Rx required 100% storefront ready

Species: Both

Manufacturer: Multiple FDA labelers

Medication Snapshot

Merged from the current Roxee medication system with field-level provenance, freshness, and completeness tracking.

Fenbendazole

For the treatment and control of large strongyles ( Strongylus edentatus , S. equinus , S. vulgaris , Triodontophorus spp.),small strongyles ( Cyathostomum spp., Cylicocyclus spp., Cylicostephanus spp., Cylicodontophorus spp.), and pinworms ( Oxyuris equi ). For the treatment and control of ascarids ( Parascaris equorum ). For the control of infections of large strongyles (Strongylus edentatus, S. equinus, S. vulgaris), small strongyles, pinworms (Oxyuris equi), and ascarids (Parascaris equorum). Species commonly shown: Both, Horse, Not For Meat Production, Horse, Foals, Not For Food.

Generic name
Fenbendazole
Brand names
safe-guard® panacur®, Panacur® C (OTC) Safe-Guard® Canine (OTC) Panacur® Granules 22.2% (Rx), Safe-Guard®, Safe-Guard® Safe-Guard® EnProAl®
Manufacturer
Multiple FDA labelers
Species
Both, Horse, Not For Meat Production, Horse, Foals, Not For Food, Pony, Not For Food
Dosage forms
Paste, Top Dressing In Feed, Liquid (Suspension), Type A Medicated Article
Prescription
Prescription required
Completeness
100%
Validation
Complete
Brand names
safe-guard® panacur® Panacur® C (OTC) Safe-Guard® Canine (OTC) Panacur® Granules 22.2% (Rx) Safe-Guard® Safe-Guard® Safe-Guard® EnProAl® Safe-Guard® AquaSol Defendazole™
Dosage forms
Paste Top Dressing In Feed Liquid (Suspension) Type A Medicated Article Medicated Feed Block Oral Suspension

Indications / Uses

For the treatment and control of large strongyles ( Strongylus edentatus , S. equinus , S. vulgaris , Triodontophorus spp.),small strongyles ( Cyathostomum spp., Cylicocyclus spp., Cylicostephanus spp., Cylicodontophorus spp.), and pinworms ( Oxyuris equi ). For the treatment and control of ascarids ( Parascaris equorum ). For the control of infections of large strongyles (Strongylus edentatus, S. equinus, S. vulgaris), small strongyles, pinworms (Oxyuris equi), and ascarids (Parascaris equorum).

Warnings / Contraindications

Sprinkle the appropriate amount of drug on a small amount of the usual grain ration. Prepare for each horse individually. Withholding feed or water is not necessary. Retreat in 6 to 8 weeks if required. Do not use in horses intended for food. Consult your veterinarian assistance in the diagnosis, treatment, and control of parasitism. Do not use in horses intended for human consumption. Consult your veterinarian for assistance in the diagnosis, treatment and control of parasitism. Mix the appropriate amount of drug with a small amount of the usual food. Dry dog food may require slight moistening to facilitate mixing. Medicated food must be fully consumed.

  • Sprinkle the appropriate amount of drug on a small amount of the usual grain ration. Prepare for each horse individually. Withholding feed or water is not necessary. Retreat in 6 to 8 weeks if required. Do not use in horses intended for food. Consult your veterinarian assistance in the diagnosis, treatment, and control of parasitism. Do not use in horses intended for human consumption. Consult your veterinarian for assistance in the diagnosis, treatment and control of parasitism. Mix the appropriate amount of drug with a small amount of the usual food. Dry dog food may require slight moistening to facilitate mixing. Medicated food must be fully consumed.

Side Effects

Top reported reactions (openFDA): Lack of efficacy (endoparasite) - hookworm, Vomiting, INEFFECTIVE, HOOKS, Diarrhoea, Other abnormal test result NOS, Lack of efficacy (endoparasite) - tapeworm.

FAQ

Both, Horse, Not For Meat Production, Horse, Foals, Not For Food, Pony, Not For Food, Dog, No Use Class Stated Or Implied, Non-Lactating, Beef, Dairy, Gilts, Growing, Pregnant sows, Boars, Beef And Dairy, No Use Class Stated Or Implied, Zoo Animals, Swine, Feral, Wild Animals, Swine, Except For Nursing Piglets, Breeders, Broilers, Layers, Replacements

Yes. Roxee shows this as prescription-only.

Paste, Top Dressing In Feed, Liquid (Suspension), Type A Medicated Article

Related Conditions

Source Transparency

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Pet Owner Quick Guide

Start here first for the safest next-step summary before the deeper medication detail.

Used for:

For the treatment and control of: Lungworms: Adult Dictyocaulus viviparus ; Stomach worms: Adult brown stomach worms ( Ostertagia ostertagi ), Adult and fourth stage larvae barberpole worms ( Haemonchus contortus ), four...

Dosing note:

Exact dosing depends on your pet's species, weight, and health status. Use your veterinarian's instructions for the exact dose and schedule.

What to watch for:

  • Sprinkle the appropriate amount of drug on a small amount of the usual grain ration
  • Prepare for each horse individually
  • Withholding feed or water is not necessary
  • Retreat in 6 to 8 weeks if required
  • Do not use in horses intended for food
  • Consult your veterinarian assistance in the diagnosis, treatment, and control of parasitism
  • Do not use in horses intended for human consumption
  • Consult your veterinarian for assistance in the diagnosis, treatment and control of parasitism
  • Mix the appropriate amount of drug with a small amount of the usual food
  • Dry dog food may require slight moistening to facilitate mixing
  • Medicated food must be fully consumed
  • wobbly/unsteady walking (1 reports)
  • trouble breathing (1 reports)
  • Head tremor (1 reports)

When to call the vet:

  • Repeated vomiting or diarrhea.
  • Severe lethargy (hard to wake, very low energy).
  • Collapse or fainting.
  • Facial swelling or hives.
  • Blood in vomit or stool.

What to tell or ask your vet today:

  • Is this medicine the right fit for my pet’s current symptoms?
  • Which warning signs mean I should call back right away?
  • How should I handle missed doses or refusal to take the medicine?
Major cautions & emergency warning signs

Side effects to monitor:

  • Sprinkle the appropriate amount of drug on a small amount of the usual grain ration
  • Prepare for each horse individually
  • Withholding feed or water is not necessary
  • Retreat in 6 to 8 weeks if required
  • Do not use in horses intended for food

Most reported reactions:

  • Unsteady walking (ataxia) (1 reports)
  • Trouble breathing (dyspnea) (1 reports)
  • Head tremor (1 reports)

Emergency warning signs:

  • Repeated vomiting or diarrhea.
  • Severe lethargy (hard to wake, very low energy).
  • Collapse or fainting.
  • Facial swelling or hives.

Quick Facts

Official label facts first, then secondary summaries. Marketing content is separated below.

Species: Both
Manufacturer: Multiple FDA labelers
Form: Liquid (Suspension), Medicated Feed Block, Oral Suspension, Paste, Top Dressing In Feed, Type A Medicated Article
Identifiers:
ANADA: 200831 NADA: 104494 NADA: 111278 NADA: 120648 NADA: 121473 NADA: 128620 NADA: 131675 NADA: 132872 NADA: 136116 NADA: 139189 NADA: 140954 NADA: 141144 NADA: 141449 NDC Package: 0061-1433-01 NDC Package: 0061-1433-02 NDC Package: 0061-1433-03 NDC Package: 43457-650-25 NDC Package: 49452-3035-1 NDC Package: 49452-3035-2 NDC Package: 49452-3035-3
Source metadata:

Warnings / Contraindications

Sprinkle the appropriate amount of drug on a small amount of the usual grain ration. Prepare for each horse individually. Withholding feed or water is not necessary. Retreat in 6 to 8 weeks if required. Do not use in horses intended for food. Consult your veterinarian assistance in the diagnosis, treatment, and control of parasitism. Do not use in horses intended for human consumption. Consult your veterinarian for assistance in the diagnosis, treatment and control of parasitism. Mix the appropriate amount of drug with a small amount of the usual food. Dry dog food may require slight moistening to facilitate mixing. Medicated food must be fully consumed.

  • High: Sprinkle the appropriate amount of drug on a small amount of the usual grain ration. Prepare for each horse individually. Withholding feed or water is not necessary. Retreat in 6 to 8 weeks if required. Do not use in horses intended for food. Consult your veterinarian assistance in the diagnosis, treatment, and control of parasitism. Do not use in horses intended for human consumption. Consult your veterinarian for assistance in the diagnosis, treatment and control of parasitism. Mix the appropriate amount of drug with a small amount of the usual food. Dry dog food may require slight moistening to facilitate mixing. Medicated food must be fully consumed.
Source metadata:

Adverse Reactions

Snapshot first, detailed rows second. This section summarizes signal data and is not a diagnosis.

Tap or hover a reaction to see what it means in plain language.

Tracked signals
32
Reported cases
32
Serious reports
25
Species represented
2
Grouped by Body System
Digestive (3) · Vomiting, Diarrhea, Bloody diarrhoea Skin & allergy (1) · Hair loss Neurologic (2) · Unsteady walking (ataxia), Head tremor Behavior (1) · Behavioral disorder (unspecified) Other (25) · Trouble breathing (dyspnea), Head down, Gingivitis
Most Reported Reactions
Reaction Body system Cases Species Serious cases
Neurologic 1 Dog 1
Other 1 Cat 1
Neurologic 1 Dog 1
Other 1 Cat 1
Other 1 Cat 1
Other 1 Cat 1
Other 1 Cat 1
Other 1 Dog 1

Species coverage: Cat (19) Dog (13)

View detailed reaction table
Reaction Body system Species Seriousness Frequency Reports
Digestive Dog Non-serious - 1
Neurologic Dog Serious - 1
Other Cat Serious - 1
Neurologic Dog Serious - 1
Other Cat Serious - 1
Skin & allergy Dog Non-serious - 1
Other Cat Serious - 1
Other Cat Serious - 1
Other Cat Serious - 1
Other Dog Serious - 1
Other Cat Serious - 1
Other Cat Serious - 1
Other Dog Serious - 1
Other Cat Serious - 1
Other Dog Serious - 1
Other Dog Serious - 1
Other Cat Serious - 1
Digestive Dog Non-serious - 1
Other Cat Serious - 1
Other Cat Serious - 1
Other Cat Serious - 1
Other Cat Serious - 1
Other Cat Serious - 1
Other Cat Serious - 1
Other Dog Non-serious - 1
Other Dog Non-serious - 1
Digestive Dog Non-serious - 1
Behavior Cat Serious - 1
Other Dog Non-serious - 1
Other Cat Serious - 1
Other Cat Serious - 1
Other Cat Serious - 1
Source metadata:

Documents

Owner handouts and official technical documents open on-page first, with the original source still one click away.

Owner handouts

0
No owner handouts linked yet.

Official label / PI

14

SPL

25

FOI

26

131-675

Official label / PI · EA

131-675

Official label / PI · FONSI

131-675

Official label / PI · EA

131-675

Official label / PI · FONSI

132-872

Official label / PI · EA

132-872

Official label / PI · FONSI

128-620

Official label / PI · EA

128-620

Official label / PI · FONSI

141-449

Official label / PI · EA

141-449

Official label / PI · FONSI

141-449

Official label / PI · EA

141-449

Official label / PI · FONSI

141-449

Official label / PI · EA

141-449

Official label / PI · FONSI

Safe-Guard®

SPL · SPL

FDA Structured Product Label

Safe-Guard® Safe-Guard® EnProAl®

Rendered from Roxee's cached FDA SPL package contents for on-page reading. Use Open original for the raw FDA ZIP/XML source.

Sponsor
Intervet, Inc.
NADA
139-189
Status
OTC
Form
Medicated Feed Block
Route
Oral
Species
Beef
Composition / specifications
Each pound of molasses block contains 750 milligrams of fenbendazole. Each pound of protein block contains 750 milligrams of fenbendazole.

Cattle (beef)

Indication

For the treatment and control of: Lungworms: Adult Dictyocaulus viviparus; Stomach worms: Adult brown stomach worms (Ostertagia ostertagi), Adult and fourth stage larvae barberpole worms (Haemonchus contortus), fourth stage larvae barberpole worms (H. placei), and Adult and fourth stage larvae small stomach worms (Trichostrongylus axei); Intestinal worms (Adult and fourth stage larvae): hookworms (Bunostomum phlebotomum), thread-necked intestinal worms (Nematodirus helvetianus), small intestinal worms (Cooperia punctata & C. oncophora), bankrupt worms (Trichostrongylus colubriformis), and nodular worms (Oesophagostomum radiatum).

Dosage

Feed free-choice at a rate of 0.1 pound of block per 100 lb body weight (BW) per day for 3 days to deliver a total of 2.27 mg fenbendazole/lb BW (5 mg/kg BW). Do not underdose. Ensure each animal receives a complete dose based on a current body weight. Underdosing may result in ineffective treatment, and encourage the development of parasite resistance. Consult a veterinarian for assistance in the diagnosis, treatment, and control of parasitism.

Limitations

Administer free choice of beef cattle on pasture that have become accustomed to non-medicated block feeding during an adaptation period of 12 to 19 days. Consult your veterinarian for assistance in the diagnosis, treatment, and control of parasitism.

Safe-Guard®

SPL · SPL

FDA Structured Product Label

Safe-Guard®

Rendered from Roxee's cached FDA SPL package contents for on-page reading. Use Open original for the raw FDA ZIP/XML source.

Sponsor
Intervet, Inc.
NADA
131-675
Status
OTC
Form
Type A Medicated Article
Route
Oral
Species
Gilts • Growing • Pregnant sows • Boars • Beef And Dairy • No Use Class Stated Or Implied • Growing • Zoo Animals • Swine, Feral • Wild Animals
Composition / specifications
Type A medicated articles conatianing 4 percent (18.1 grams per pound), 8 percent (36.2 grams per pound), and 20 percent (90.7 grams per pound) fenbendazole.

Bighorn sheep

Indication

For the treatment and control of: Lungworms (Protostrongylus spp.).

Dosage

10 mg fenbendazole/kg body weight/day x 3 days of treatment

Feral Swine

Indication

For the treatment and control of: kidney worms (Stephanurus dentatus), roundworms (Ascaris suum), and nodular worms (Oesophagostomum dentatum).

Dosage

3 mg fenbendazole/kg body weight/day x 3 days of treatment

Wildlife and Zoo Ruminants (Subfamily Antilopinae, Hippotraginae, and Caprinae)

Indication

For the treatment and control of: Stomach worms: small stomach worms (Trichostrongylus spp.), barberpole worms (Haemonchus spp.); Intestinal worms: thread-necked intestinal worms (Nematodirus spp.) and whipworms (Trichuris spp.)

Dosage

2.5 mg fenbendazole/kg body weight/day x 3 days of treatment

Growing Turkeys

Indication

For the treatment and control of: Gastrointestinal worms: Roundworms, Adults and larvae (Ascaridia dissimilis); Cecal worms, Adults and larvae (Heterakis gallinarum), an important vector of Histomonas meleagridis (Blackhead).

Dosage

14.5 g fenbendazole/ton of feed, to be fed as the sole ration for 6 days

Swine (Growing pigs, gilts, pregnant sows, and boars)

Indication

For the treatment and control of: Lungworms: Adult Metastrongylus apri, adult Metastrongylus pudendotectus; Gastrointestinal worms: Adult and larvae (L3, L4 stages, liver, lung, intestinal forms) large roundworms (Ascaris suum), Adult nodular worms (Oesophagostomum dentatum, O. quadrispinulatum), Adult small stomach worms (Hyostrongylus rubidus), Adult and larvae (L2, L3, L4 stages- intestinal mucosal forms) whipworms (Trichuris suis); and Kidney worms: Adult and larvae Stephanurus dentatus.

Dosage

9 mg fenbendazole per kg body weight (4.08 mg fenbendazole per pound) to be fed as the sole ration over a period of 3 to 12 days.

Cattle (Dairy and Beef Cattle)

Indication

For the treatment and control of: Lungworms: Adult Dictyocaulus viviparus; Stomach worms: Adult brown stomach worms (Ostertagia ostertagi), Adult and fourth stage larvae barberpole worms (Haemonchus contortus), fourth stage larvae barberpole worms (H. placei), and Adult and fourth stage larvae small stomach worms (Trichostrongylus axei); Intestinal worms (Adult and fourth stage larvae): hookworms (Bunostomum phlebotomum), thread-necked intestinal worms (Nematodirus helvetianus), small intestinal worms (Cooperia punctata & C. oncophora), bankrupt worms (Trichostrongylus colubriformis), and nodular worms (Oesophagostomum radiatum)

Dosage

5 mg fenbendazole per kg body weight in a one (1) day treatment (2.27 mg fenbendazole per pound). Feed as the sole ration for one (1) day. Free-Choice Feeds: Type C free-choice medicated feed must be manufactured by a licensed feed mill according to an approved formula to provide a total of 5 mg per kg body weight fenbendazole over 3 to 6 days.

Horses

Indication

For the treatment and control of: Large strongyles (Strongylus edentatus, S. equinus, S. vulgaris, Triodontophorus spp.), Small strongyles (Cyathostomum spp., Cylicocyclus spp., Cylicostephanus spp.), Pinworms (Oxyuris equi), and Ascarids (Parascaris equorum).

Dosage

For the control of large strongyles, small strongyles, and pinworms the recommended dose is 5 mg fenbendazole per kg body weight (2.27 mg fenbendazole per pound) in a one (1) day treatment. For the control of ascarids the recommended dose is 10 mg fenbendazole per kg body weight (4.54 mg fenbendazole per pound) in a one (1) day treatment.

Wild quail

Indication

For the treatment and control of Gastrointestinal worms: Cecal worms, (Aulonocephalus spp.).

Dosage

90.7 g of fenbendazole/ton of Type C medicated feed, to be fed for 21 consecutive days.

Defendazole™

SPL · SPL

FDA Structured Product Label

Defendazole™

Rendered from Roxee's cached FDA SPL package contents for on-page reading. Use Open original for the raw FDA ZIP/XML source.

Sponsor
Norbrook Laboratories, Ltd.
ANADA
200-831
Status
OTC
Form
Oral Suspension
Route
Oral
Species
Beef And Dairy
Composition / specifications
100 mg/mL (10%)

Beef and Dairy Cattle

Indication

For the treatment and control of:
Lungworms: Adult Dictyocaulus viviparus;
Stomach worms: Adult brown stomach worms (Ostertagia ostertagi), Adult and fourth stage larvae barberpole worms (Haemonchus contortus & H. placei), and Adult and fourth stage larvae small stomach worms (Trichostrongylus axei);
Intestinal worms (Adult and fourth stage larvae): hookworms (Bunostomum phlebotomum), thread-necked intestinal worms (Nematodirus helvetianus), small intestinal worms (Cooperia punctata & C. oncophora), bankrupt worms (Trichostrongylus colubriformis), and nodular worms (Oesophagostomum radiatum).

Dosage

2.3 mg/lb (5 mg/kg) body weight

Goats

Indication

For the treatment and control of:
Stomach worms (adults): Haemonchus contortus and Teladorsagia circumcincta.

Dosage

2.3 mg/lb (5 mg/kg) body weight

Safe-Guard®

SPL · SPL

FDA Structured Product Label

Safe-Guard®

Rendered from Roxee's cached FDA SPL package contents for on-page reading. Use Open original for the raw FDA ZIP/XML source.

Sponsor
Intervet, Inc.
NADA
132-872
Status
OTC
Form
Paste
Route
Oral
Species
Beef • Dairy
Composition / specifications
The product is an aqueous paste containing 10 percent fenbendazole.

Beef and dairy cattle

Indication

For the treatment and control of: Lungworms: Adult Dictyocaulus viviparus; Stomach worms: Adult brown stomach worms (Ostertagia ostertagi), Adult and fourth stage larvae barberpole worms (Haemonchus contortus), fourth stage larvae barberpole worms (H. placei), and Adult and fourth stage larvae small stomach worms (Trichostrongylus axei); Intestinal worms (Adult and fourth stage larvae): hookworms (Bunostomum phlebotomum), thread-necked intestinal worms (Nematodirus helvetianus), small intestinal worms (Cooperia punctata & C. oncophora), bankrupt worms (Trichostrongylus colubriformis), and nodular worms (Oesophagostomum radiatum).

Dosage
Administer orally 5 milligrams per kilogram of body weight (2.3 milligrams per pound).
Limitations

Do not underdose. Ensure each animal receives a complete dose based on a current body weight. Underdosing may result in ineffective treatment, and encourage the development of parasite resistance. Consult a veterinarian for assistance in the diagnosis, treatment, and control of parasitism.

Safe-Guard®

SPL · SPL

FDA Structured Product Label

Safe-Guard® Panacur®

Rendered from Roxee's cached FDA SPL package contents for on-page reading. Use Open original for the raw FDA ZIP/XML source.

Sponsor
Intervet, Inc.
NADA
128-620
Status
OTC
Form
Liquid (Suspension)
Route
Oral
Species
Non-Lactating • Beef • Dairy
Composition / specifications
The drug is a suspension containing 10 percent (100 milligrams per milliliter) fenbendazole.

Cattle (beef and dairy)

Indication

For the treatment and control of: Lungworms: Adult Dictyocaulus viviparus; Stomach worms: Adult brown stomach worms (Ostertagia ostertagi), Adult and fourth stage larvae barberpole worms (Haemonchus contortus & H. placei), and Adult and fourth stage larvae small stomach worms (Trichostrongylus axei); Intestinal worms (Adult and fourth stage larvae): hookworms (Bunostomum phlebotomum), thread-necked intestinal worms (Nematodirus helvetianus), small intestinal worms (Cooperia punctata & C. oncophora), bankrupt worms (Trichostrongylus colubriformis), and nodular worms (Oesophagostomum radiatum).

Dosage

Administer orally at a dose of 2.3 mg/lb (5 mg/kg) body weight.

Goats

Indication

For the treatment and control of: Stomach worms (adults): Haemonchus contortus and Teladorsagia circumcincta.

Dosage

Administer orally at a dose of 2.3 mg/lb (5 mg/kg) body weight.

Panacur®

SPL · SPL

FDA Structured Product Label

Safe-Guard® Panacur®

Rendered from Roxee's cached FDA SPL package contents for on-page reading. Use Open original for the raw FDA ZIP/XML source.

Sponsor
Intervet, Inc.
NADA
128-620
Status
OTC
Form
Liquid (Suspension)
Route
Oral
Species
Non-Lactating • Beef • Dairy
Composition / specifications
The drug is a suspension containing 10 percent (100 milligrams per milliliter) fenbendazole.

Cattle (beef and dairy)

Indication

For the treatment and control of: Lungworms: Adult Dictyocaulus viviparus; Stomach worms: Adult brown stomach worms (Ostertagia ostertagi), Adult and fourth stage larvae barberpole worms (Haemonchus contortus & H. placei), and Adult and fourth stage larvae small stomach worms (Trichostrongylus axei); Intestinal worms (Adult and fourth stage larvae): hookworms (Bunostomum phlebotomum), thread-necked intestinal worms (Nematodirus helvetianus), small intestinal worms (Cooperia punctata & C. oncophora), bankrupt worms (Trichostrongylus colubriformis), and nodular worms (Oesophagostomum radiatum).

Dosage

Administer orally at a dose of 2.3 mg/lb (5 mg/kg) body weight.

Goats

Indication

For the treatment and control of: Stomach worms (adults): Haemonchus contortus and Teladorsagia circumcincta.

Dosage

Administer orally at a dose of 2.3 mg/lb (5 mg/kg) body weight.

safe-guard®

SPL · SPL

FDA Structured Product Label

safe-guard® panacur®

Rendered from Roxee's cached FDA SPL package contents for on-page reading. Use Open original for the raw FDA ZIP/XML source.

Sponsor
Intervet, Inc.
NADA
120-648
Status
OTC
Form
Paste
Route
Oral
Species
Horse, Not For Meat Production • Horse, Foals, Not For Food • Pony, Not For Food
Composition / specifications
The product is an aqueous paste containing 10 percent fenbendazole.

Horses

Indication

For the treatment and control of large strongyles (Strongylus edentatus, S. equinus, S. vulgaris), encysted early 3rd stage (hypobiotic), late 3rd stage and 4th stage cyathostome larvae, small strongyles, pinworms (Oxyuris equi), ascarids (Parascaris equorum), and for the control of arteritis caused by 4th stage larvae of Strongylus vulgaris in horses.

Dosage

For large strongyles, small strongyles, and pinworms, the recommended dose is 5 mg/kg (2.3 mb/lb) administered once orally. For ascarids, the recommended dose is 10 mg/kg (4.6 mg/lb) administered once orally. For treatment and control of hypobiotic (encysted early 3rd stage), late 3rd stage, and 4th stage cyathostome larvae, as well as 4th stage Strongylus vulgaris larvae, the recommended dose is 10 mg/kg (4.6 mg/lb) administered orally daily for 5 consecutive days.

Limitations

Do not use in horses intended for human consumption. Consult your veterinarian for assistance in the diagnosis, treatment and control of parasitism.

panacur®

SPL · SPL

FDA Structured Product Label

safe-guard® panacur®

Rendered from Roxee's cached FDA SPL package contents for on-page reading. Use Open original for the raw FDA ZIP/XML source.

Sponsor
Intervet, Inc.
NADA
120-648
Status
OTC
Form
Paste
Route
Oral
Species
Horse, Not For Meat Production • Horse, Foals, Not For Food • Pony, Not For Food
Composition / specifications
The product is an aqueous paste containing 10 percent fenbendazole.

Horses

Indication

For the treatment and control of large strongyles (Strongylus edentatus, S. equinus, S. vulgaris), encysted early 3rd stage (hypobiotic), late 3rd stage and 4th stage cyathostome larvae, small strongyles, pinworms (Oxyuris equi), ascarids (Parascaris equorum), and for the control of arteritis caused by 4th stage larvae of Strongylus vulgaris in horses.

Dosage

For large strongyles, small strongyles, and pinworms, the recommended dose is 5 mg/kg (2.3 mb/lb) administered once orally. For ascarids, the recommended dose is 10 mg/kg (4.6 mg/lb) administered once orally. For treatment and control of hypobiotic (encysted early 3rd stage), late 3rd stage, and 4th stage cyathostome larvae, as well as 4th stage Strongylus vulgaris larvae, the recommended dose is 10 mg/kg (4.6 mg/lb) administered orally daily for 5 consecutive days.

Limitations

Do not use in horses intended for human consumption. Consult your veterinarian for assistance in the diagnosis, treatment and control of parasitism.

Panacur® C (OTC)

SPL · SPL

FDA Structured Product Label

Panacur® C (OTC) Safe-Guard® Canine (OTC) Panacur® Granules 22.2% (Rx)

Rendered from Roxee's cached FDA SPL package contents for on-page reading. Use Open original for the raw FDA ZIP/XML source.

Sponsor
Intervet, Inc.
NADA
121-473
Status
OTC
Form
Top Dressing In Feed
Route
Oral
Species
Dog, No Use Class Stated Or Implied
Composition / specifications
The drug is in granular form containing 22 percent (222 milligrams per gram) fenbendazole.

Dogs

Indication
For the treatment and control of ascarids (Toxocara canis, Toxascaris leonina), hookworms (Ancylostoma caninum, Uncinaria stenocephala), whipworms (Trichuris vulpis), and tapeworms (Taenia pisiformis).
Dosage
50 milligrams per kilogram (22.7 milligrams per pound) daily for 3 consecutive days.
Limitations

Mix the appropriate amount of drug with a small amount of the usual food. Dry dog food may require slight moistening to facilitate mixing. Medicated food must be fully consumed. 

Safe-Guard® Canine (OTC)

SPL · SPL

FDA Structured Product Label

Panacur® C (OTC) Safe-Guard® Canine (OTC) Panacur® Granules 22.2% (Rx)

Rendered from Roxee's cached FDA SPL package contents for on-page reading. Use Open original for the raw FDA ZIP/XML source.

Sponsor
Intervet, Inc.
NADA
121-473
Status
OTC
Form
Top Dressing In Feed
Route
Oral
Species
Dog, No Use Class Stated Or Implied
Composition / specifications
The drug is in granular form containing 22 percent (222 milligrams per gram) fenbendazole.

Dogs

Indication
For the treatment and control of ascarids (Toxocara canis, Toxascaris leonina), hookworms (Ancylostoma caninum, Uncinaria stenocephala), whipworms (Trichuris vulpis), and tapeworms (Taenia pisiformis).
Dosage
50 milligrams per kilogram (22.7 milligrams per pound) daily for 3 consecutive days.
Limitations

Mix the appropriate amount of drug with a small amount of the usual food. Dry dog food may require slight moistening to facilitate mixing. Medicated food must be fully consumed. 

Panacur® Granules 22.2% (Rx)

SPL · SPL

FDA Structured Product Label

Panacur® C (OTC) Safe-Guard® Canine (OTC) Panacur® Granules 22.2% (Rx)

Rendered from Roxee's cached FDA SPL package contents for on-page reading. Use Open original for the raw FDA ZIP/XML source.

Sponsor
Intervet, Inc.
NADA
121-473
Status
OTC
Form
Top Dressing In Feed
Route
Oral
Species
Dog, No Use Class Stated Or Implied
Composition / specifications
The drug is in granular form containing 22 percent (222 milligrams per gram) fenbendazole.

Dogs

Indication
For the treatment and control of ascarids (Toxocara canis, Toxascaris leonina), hookworms (Ancylostoma caninum, Uncinaria stenocephala), whipworms (Trichuris vulpis), and tapeworms (Taenia pisiformis).
Dosage
50 milligrams per kilogram (22.7 milligrams per pound) daily for 3 consecutive days.
Limitations

Mix the appropriate amount of drug with a small amount of the usual food. Dry dog food may require slight moistening to facilitate mixing. Medicated food must be fully consumed. 

Safe-Guard® AquaSol

SPL · SPL

FDA Structured Product Label

Safe-Guard® AquaSol

Rendered from Roxee's cached FDA SPL package contents for on-page reading. Use Open original for the raw FDA ZIP/XML source.

Sponsor
Intervet, Inc.
NADA
141-449
Status
OTC
Form
Oral Suspension
Route
Oral
Species
Swine, Except For Nursing Piglets • Breeders • Broilers • Layers • Replacements
Composition / specifications
200 mg/mL

Swine (Except Nursing Piglets)

Indication

For the treatment and control of: Lungworms: Adult Metastrongylus apri, adult Metastrongylus pudendotectus; Gastrointestinal worms: Adult and larvae (L3, L4 stages, liver, lung, intestinal forms) large roundworms (Ascaris suum), Adult nodular worms (Oesophagostomum dentatum, O. quadrispinulatum), Adult small stomach worms (Hyostrongylus rubidus), Adult and larvae (L2, L3, L4 stages- intestinal mucosal forms) whipworms (Trichuris suis); and Kidney worms: Adult and larvae Stephanurus dentatus.

Dosage
2.2 mg fenbendazole/kg body weight (BW) (1 mg/lb) daily for 3 consecutive days

Chickens (broilers, replacements, breeding, and laying hens)

Indication

For the treatment and control of adult Ascaridia galli in broiler chickens and replacement chickens and for the treatment and control of adult A. galli and Heterakis gallinarum in breeding chickens and laying hens.

Dosage
1 mg/kg BW (0.454 mg/lb)/day for 5 consecutive days

Ozipco SPL

SPL · Structured Product Label

FDA Structured Product Label XML for Ozipco. Use the source link for the full official labeling record.

Panacur SPL

SPL · Structured Product Label

FDA Structured Product Label XML for Panacur. Use the source link for the full official labeling record.

Panacur SPL

SPL · Structured Product Label

FDA Structured Product Label XML for Panacur. Use the source link for the full official labeling record.

Panacur SPL

SPL · Structured Product Label

FDA Structured Product Label XML for Panacur. Use the source link for the full official labeling record.

Panacur SPL

SPL · Structured Product Label

FDA Structured Product Label XML for Panacur. Use the source link for the full official labeling record.

Panacur C Canine SPL

SPL · Structured Product Label

FDA Structured Product Label XML for Panacur C Canine. Use the source link for the full official labeling record.

Safe-guard SPL

SPL · Structured Product Label

FDA Structured Product Label XML for Safe-guard. Use the source link for the full official labeling record.

Safe-Guard SPL

SPL · Structured Product Label

FDA Structured Product Label XML for Safe-Guard. Use the source link for the full official labeling record.

Safe-guard SPL

SPL · Structured Product Label

FDA Structured Product Label XML for Safe-guard. Use the source link for the full official labeling record.

Safe-Guard AquaSol SPL

SPL · Structured Product Label

FDA Structured Product Label XML for Safe-Guard AquaSol. Use the source link for the full official labeling record.

Defendazole SPL

SPL · Structured Product Label

FDA Structured Product Label XML for Defendazole. Use the source link for the full official labeling record.

Safe-Guard SPL

SPL · Structured Product Label

FDA Structured Product Label XML for Safe-Guard. Use the source link for the full official labeling record.

Safe-Guard SPL

SPL · Structured Product Label

FDA Structured Product Label XML for Safe-Guard. Use the source link for the full official labeling record.

FOI Summary sN 139-189 Approved April 26, 2021.pdf

FOI · FOI

UCM472706.pdf

FOI · FOI

FOI Summary sN 131-675 Approved May 23, 2024.pdf

FOI · FOI

FOI Summary sN 131-675 Approved January 10, 2022.pdf

FOI · FOI

UCM364715.pdf

FOI · FOI

ucm069865.pdf

FOI · FOI

ucm069862.pdf

FOI · FOI

ucm069858.pdf

FOI · FOI

N131675_Supp_03_30_1991.pdf

FOI · FOI

UCM470924.pdf

FOI · FOI

FOI Summary oA 200-831 Approved January 13, 2026.pdf

FOI · FOI

FOI Summary sN 132-872 Approved March 24, 2021.pdf

FOI · FOI

N-132872-Q-0140-OT-AA_foi.pdf

FOI · FOI

FOI Summary sN 128-620 Approved June 14, 2021.pdf

FOI · FOI

ucm069824.pdf

FOI · FOI

ucm069823.pdf

FOI · FOI

N-128620-Q-0179-OT-AA_foi.pdf

FOI · FOI

N128620_Supp_04_25_1994.pdf

FOI · FOI

N120648_Supp_May_28_1985.pdf

FOI · FOI

ucm069818.pdf

FOI · FOI

N121473_Suppl_5_31_1994.pdf

FOI · FOI

FOI Summary sN 141-449 Approved January 5, 2018.pdf

FOI · FOI

UCM488824.pdf

FOI · FOI

UCM471258.pdf

FOI · FOI

ucm117184.pdf

FOI · FOI summary

UCM478252.pdf

FOI · FOI summary

Veterinary reference (advanced)

Canonical medication sections are above. This legacy block remains available for deeper cross-reference without cluttering the primary workflow.

At a Glance

Quick facts and links to official labeling and safety signals.

Data freshness
  • Storefront facts: Source Roxee | Refreshed May 5, 2026, 10:00 AM UTC
    The storefront fact projection used for browse cards and quick facts.
  • Animal Drugs @ FDA: Source FDA | Refreshed May 5, 2026, 10:00 AM UTC
    Applications/products are imported from FDA export data.
  • Animal Drugs @ FDA previews: Source FDA | Refreshed Feb 9, 2026, 3:05 AM UTC
    Label highlights/doc links are fetched from FDA preview endpoints.
  • openFDA reaction terms: Source FDA openFDA | Refreshed May 5, 2026, 10:04 AM UTC
  • openFDA case summaries: Source FDA openFDA | Refreshed May 5, 2026, 10:04 AM UTC
Official (FDA)
Identity: Generic ingredient • No FDA branded products linked
No official FDA brand rows linked yet for this ingredient.
Manufacturer mapping: Multiple FDA labelers
Case-reported brands (openFDA): MSK
Catalog species: Both FDA-labeled species: Beef, Beef And Dairy, Boars, Breeders, Broilers, Dairy, Dog, Gilts, Growing, Horse, Layers, No Use Class Stated Or Implied, Non-Lactating, Pony, Pregnant sows, Replacements, Swine, Wild Animals, Zoo Animals
Rx/OTC: OTC
Form/route: Liquid (Suspension), Medicated Feed Block, Oral Suspension, Paste, Top Dressing In Feed, Type A Medicated Article Oral
Applications: NADA 139-189 • NADA 131-675 • ANADA 200-831 • NADA 132-872 • NADA 128-620 • NADA 120-648 • NADA 121-473 • NADA 141-449
Documents: 38 (FOI: 24) • SPL: 12 Label highlights Official documents
Safety (openFDA)
Top reactions: Dog 34 Cat 28 View
Case summaries: 14 (showing 8) View
openFDA reports are unverified and do not prove causation.

Explore
Related conditions: Gastrointestinal (additional)
Linked using: Fda_Label (0.95)

Diagnosis Codes

Diagnosis-code mappings are not available for this medication yet.

Counseling and Monitoring Highlights

Global Pet owner/Vet mode is controlled in the header. This section avoids duplicate in-page persona tabs.

Owner-facing counseling points
  • Sprinkle the appropriate amount of drug on a small amount of the usual grain ration. Prepare for each horse individually. Withholding feed or water is not necessary. Retreat in 6 to 8 weeks if required. Do not use in horses intended for food. Consult your veterinarian assistance in the diagnosis, treatment, and control of parasitism. Do not use in horses intended for human consumption. Consult your veterinarian for assistance in the diagnosis, treatment and control of parasitism. Mix the appropriate amount of drug with a small amount of the usual food. Dry dog food may require slight moistening to facilitate mixing. Medicated food must be fully consumed. (Contraindication, High)
Top reaction signals
Unsteady walking (ataxia) (1) Trouble breathing (dyspnea) (1) Head tremor (1) Head down (1) Gingivitis (1) Fibrosarcoma (1) Eye neoplasm NOS (1) Eosinophilia (1)

Identifiers & Packages

Normalized identifiers (NDC/NADA/ANADA) and package metadata from regulator listings.

Identifiers
ANADA: 200831 NADA: 104494 NADA: 111278 NADA: 120648 NADA: 121473 NADA: 128620 NADA: 131675 NADA: 132872 NADA: 136116 NADA: 139189 NADA: 140954 NADA: 141144 NADA: 141449 NDC Package: 0061-1433-01 NDC Package: 0061-1433-02 NDC Package: 0061-1433-03 NDC Package: 43457-650-25 NDC Package: 49452-3035-1 NDC Package: 49452-3035-2 NDC Package: 49452-3035-3 NDC Package: 49452-3035-4 NDC Package: 49452-3035-5 NDC Package: 49452-3035-6 NDC Package: 55529-165-06
Package NDC Product NDC Form / Route Status
0061-1433-01 0061 -
0061-1433-02 0061 -
0061-1433-03 0061 -
43457-650-25 43457 -
49452-3035-1 49452 -
49452-3035-2 49452 -
49452-3035-3 49452 -
49452-3035-4 49452 -
49452-3035-5 49452 -
49452-3035-6 49452 -
55529-165-06 55529 -
55529-165-08 55529 -
57926-081-44 57926 -
57926-081-48 57926 -
57926-083-44 57926 -
57926-084-46 57926 -
57926-085-47 57926 -
57926-086-01 57926 -
57926-087-01 57926 -
57926-088-01 57926 -

Enriched Documents

Documents are tiered by source trust: Official, Clinical, Manufacturer, Marketing.

  • Ozipco SPL • Structured Product Label • Official
    FDA Structured Product Label from the electronic animal drug product listing directory.
  • Panacur SPL • Structured Product Label • Official
    FDA Structured Product Label from the electronic animal drug product listing directory.
  • Panacur SPL • Structured Product Label • Official
    FDA Structured Product Label from the electronic animal drug product listing directory.
  • Panacur SPL • Structured Product Label • Official
    FDA Structured Product Label from the electronic animal drug product listing directory.
  • Panacur SPL • Structured Product Label • Official
    FDA Structured Product Label from the electronic animal drug product listing directory.
  • Panacur C Canine SPL • Structured Product Label • Official
    FDA Structured Product Label from the electronic animal drug product listing directory.
  • Safe-guard SPL • Structured Product Label • Official
    FDA Structured Product Label from the electronic animal drug product listing directory.
  • Safe-Guard SPL • Structured Product Label • Official
    FDA Structured Product Label from the electronic animal drug product listing directory.
  • Safe-guard SPL • Structured Product Label • Official
    FDA Structured Product Label from the electronic animal drug product listing directory.
  • Safe-Guard AquaSol SPL • Structured Product Label • Official
    FDA Structured Product Label from the electronic animal drug product listing directory.
  • Defendazole SPL • Structured Product Label • Official
    FDA Structured Product Label from the electronic animal drug product listing directory.
  • Safe-Guard SPL • Structured Product Label • Official
    FDA Structured Product Label from the electronic animal drug product listing directory.
  • Safe-Guard SPL • Structured Product Label • Official
    FDA Structured Product Label from the electronic animal drug product listing directory.
  • UCM472706.pdf • FOI summary • Official • April 28, 2026
    FDA FOI summary for application 139189
  • FOI Summary sN 139-189 Approved April 26, 2021.pdf • FOI summary • Official • April 28, 2026
    FDA FOI summary for application 139189
  • UCM470924.pdf • FOI summary • Official • April 10, 2026
    FDA FOI summary for application 131675
  • N131675_Supp_03_30_1991.pdf • FOI summary • Official • April 10, 2026
    FDA FOI summary for application 131675
  • ucm069858.pdf • FOI summary • Official • April 10, 2026
    FDA FOI summary for application 131675
  • ucm069862.pdf • FOI summary • Official • April 10, 2026
    FDA FOI summary for application 131675
  • ucm069865.pdf • FOI summary • Official • April 10, 2026
    FDA FOI summary for application 131675
  • UCM364715.pdf • FOI summary • Official • April 10, 2026
    FDA FOI summary for application 131675
  • FOI Summary sN 131-675 Approved January 10, 2022.pdf • FOI summary • Official • April 10, 2026
    FDA FOI summary for application 131675
  • FOI Summary sN 131-675 Approved May 23, 2024.pdf • FOI summary • Official • April 10, 2026
    FDA FOI summary for application 131675
  • FOI Summary oA 200-831 Approved January 13, 2026.pdf • FOI summary • Official • Feb. 2, 2026
    FDA FOI summary for application 200831
  • ucm117184.pdf • FOI summary • Official • Nov. 12, 2024
    FDA FOI summary for application 141144
  • N-132872-Q-0140-OT-AA_foi.pdf • FOI summary • Official • Oct. 12, 2023
    FDA FOI summary for application 132872
  • FOI Summary sN 132-872 Approved March 24, 2021.pdf • FOI summary • Official • Oct. 12, 2023
    FDA FOI summary for application 132872
  • UCM478252.pdf • FOI summary • Official • Aug. 25, 2023
    FDA FOI summary for application 140954
  • N128620_Supp_04_25_1994.pdf • FOI summary • Official • June 6, 2022
    FDA FOI summary for application 128620
  • N-128620-Q-0179-OT-AA_foi.pdf • FOI summary • Official • June 6, 2022
    FDA FOI summary for application 128620
  • ucm069823.pdf • FOI summary • Official • June 6, 2022
    FDA FOI summary for application 128620
  • ucm069824.pdf • FOI summary • Official • June 6, 2022
    FDA FOI summary for application 128620
  • FOI Summary sN 128-620 Approved June 14, 2021.pdf • FOI summary • Official • June 6, 2022
    FDA FOI summary for application 128620
  • N120648_Supp_May_28_1985.pdf • FOI summary • Official • Jan. 25, 2022
    FDA FOI summary for application 120648
  • N121473_Suppl_5_31_1994.pdf • FOI summary • Official • May 6, 2021
    FDA FOI summary for application 121473
  • ucm069818.pdf • FOI summary • Official • May 6, 2021
    FDA FOI summary for application 121473
  • UCM471258.pdf • FOI summary • Official • April 12, 2021
    FDA FOI summary for application 141449
  • UCM488824.pdf • FOI summary • Official • April 12, 2021
    FDA FOI summary for application 141449
  • FOI Summary sN 141-449 Approved January 5, 2018.pdf • FOI summary • Official • April 12, 2021
    FDA FOI summary for application 141449

Data Sources & Change Log

Every non-trivial field is expected to include provenance and update timestamps.

Official 58 Clinical 1 Manufacturer 0 Marketing 0
Current Field Facts
  • side_effects: Top reported reactions (openFDA): Lack of efficacy (endoparasite) - hookworm, Vomiting, INEFFECTIVE, HOOKS, Diarrhoea, Other abnormal test result NOS, Lack of … (Clinical, 2026-04-11)
  • contraindications: Sprinkle the appropriate amount of drug on a small amount of the usual grain ration. Prepare for each horse individually. Withholding feed or water is not nece… (Official, 2026-04-12)
  • contraindications: Sprinkle the appropriate amount of drug on a small amount of the usual grain ration. Prepare for each horse individually. Withholding feed or water is not nece… (Official, 2026-04-11)
  • contraindications: Sprinkle the appropriate amount of drug on a small amount of the usual grain ration. Prepare for each horse individually. Withholding feed or water is not nece… (Official, 2026-02-12)
  • indications: For the treatment and control of adult Ascaridia galli in broiler chickens and replacement chickens intended to become breeding chickens and for the treatment … (Official, 2026-05-05)
  • indications: For the treatment and control of adult Ascaridia galli in broiler chickens and replacement chickens intended to become breeding chickens and for the treatment … (Official, 2026-05-03)
  • indications: For the treatment and control of adult Ascaridia galli in broiler chickens and replacement chickens intended to become breeding chickens and for the treatment … (Official, 2026-05-02)
  • indications: For the treatment and control of adult Ascaridia galli in broiler chickens and replacement chickens intended to become breeding chickens and for the treatment … (Official, 2026-04-29)
  • indications: For the treatment and control of adult Ascaridia galli in broiler chickens and replacement chickens intended to become breeding chickens and for the treatment … (Official, 2026-04-28)
  • indications: For the treatment and control of adult Ascaridia galli in broiler chickens and replacement chickens intended to become breeding chickens and for the treatment … (Official, 2026-04-27)
  • indications: For the treatment and control of adult Ascaridia galli in broiler chickens and replacement chickens intended to become breeding chickens and for the treatment … (Official, 2026-04-26)
  • indications: For the treatment and control of adult Ascaridia galli in broiler chickens and replacement chickens intended to become breeding chickens and for the treatment … (Official, 2026-04-25)
  • indications: For the treatment and control of adult Ascaridia galli in broiler chickens and replacement chickens intended to become breeding chickens and for the treatment … (Official, 2026-04-22)
  • manufacturer_name: Multiple FDA labelers (Official, 2026-04-22)
  • prescription_required: Rx required (Official, 2026-04-22)
  • side_effects: Top reported reactions (openFDA): Lack of efficacy (endoparasite) - hookworm, Vomiting, INEFFECTIVE, HOOKS, Diarrhoea, Other abnormal test result NOS, Lack of … (Official, 2026-04-12)
  • side_effects: Top reported reactions (openFDA): Lack of efficacy (endoparasite) - hookworm, Vomiting, INEFFECTIVE, HOOKS, Diarrhoea, Other abnormal test result NOS, Lack of … (Official, 2026-02-12)
  • usage: For the treatment and control of large strongyles ( Strongylus edentatus , S. equinus , S. vulgaris , Triodontophorus spp.),small strongyles ( Cyathostomum spp… (Official, 2026-04-12)
  • usage: For the treatment and control of large strongyles ( Strongylus edentatus , S. equinus , S. vulgaris , Triodontophorus spp.),small strongyles ( Cyathostomum spp… (Official, 2026-04-11)
  • usage: For the treatment and control of large strongyles ( Strongylus edentatus , S. equinus , S. vulgaris , Triodontophorus spp.),small strongyles ( Cyathostomum spp… (Official, 2026-02-12)
Recent Revisions
  • side_effects updated 2026-04-12 10:05 by etl_backfill • Backfilled from existing medication fields
  • contraindications updated 2026-04-12 10:05 by etl_backfill • Backfilled from existing medication fields
  • usage updated 2026-04-12 10:05 by etl_backfill • Backfilled from existing medication fields
  • side_effects updated 2026-04-11 10:05 by etl_backfill • Backfilled from existing medication fields
  • contraindications updated 2026-04-11 10:05 by etl_backfill • Backfilled from existing medication fields
  • usage updated 2026-04-11 10:05 by etl_backfill • Backfilled from existing medication fields
  • side_effects updated 2026-02-12 22:44 by etl_backfill • Backfilled from existing medication fields
  • contraindications updated 2026-02-12 22:44 by etl_backfill • Backfilled from existing medication fields
  • usage updated 2026-02-12 22:44 by etl_backfill • Backfilled from existing medication fields

FDA Products & Applications (Animal Drugs @ FDA)

Official sponsor/proprietary-name/application-status records linked by active ingredient.

Product Sponsor Application Status Published
Safe-Guard® Safe-Guard® EnProAl®
OTC
Fenbendazole
Medicated Feed Block Oral
Intervet, Inc. NADA 139-189 Approved Apr 28, 2026
Safe-Guard®
OTC
Fenbendazole
Type A Medicated Article Oral
Intervet, Inc. NADA 131-675 Approved Apr 10, 2026
Defendazole™
OTC
Fenbendazole
Oral Suspension Oral
Norbrook Laboratories, Ltd. ANADA 200-831 Approved Feb 2, 2026
Safe-Guard®
OTC
Fenbendazole
Paste Oral
Intervet, Inc. NADA 132-872 Approved Oct 12, 2023
Safe-Guard® Panacur®
OTC
Fenbendazole
Liquid (Suspension) Oral
Intervet, Inc. NADA 128-620 Approved Jun 6, 2022
safe-guard® panacur®
OTC
Fenbendazole
Paste Oral
Intervet, Inc. NADA 120-648 Approved Jan 25, 2022
Panacur® C (OTC) Safe-Guard® Canine (OTC) Panacur® Granules 22.2% (Rx)
OTC
Fenbendazole
Top Dressing In Feed Oral
Intervet, Inc. NADA 121-473 Approved May 6, 2021
Safe-Guard® AquaSol
OTC
Fenbendazole
Oral Suspension Oral
Intervet, Inc. NADA 141-449 Approved Apr 12, 2021

Data source: FDA Animal Drugs @ FDA (public search export).

What It's For (FDA Label Highlights)

Extracted from FDA Animal Drugs @ FDA product labeling. Always confirm details with your veterinarian.

Species: Beef
Composition / specifications
Each pound of molasses block contains 750 milligrams of fenbendazole. Each pound of protein block contains 750 milligrams of fenbendazole.
Cattle (beef)
Indication

For the treatment and control of: Lungworms: Adult Dictyocaulus viviparus; Stomach worms: Adult brown stomach worms (Ostertagia ostertagi), Adult and fourth stage larvae barberpole worms (Haemonchus contortus), fourth stage larvae barberpole worms (H. placei), and Adult and fourth stage larvae small stomach worms (Trichostrongylus axei); Intestinal worms (Adult and fourth stage larvae): hookworms (Bunostomum phlebotomum), thread-necked intestinal worms (Nematodirus helvetianus), small intestinal worms (Cooperia punctata & C. oncophora), bankrupt worms (Trichostrongylus colubriformis), and nodular worms (Oesophagostomum radiatum).

Dosage

Feed free-choice at a rate of 0.1 pound of block per 100 lb body weight (BW) per day for 3 days to deliver a total of 2.27 mg fenbendazole/lb BW (5 mg/kg BW). Do not underdose. Ensure each animal receives a complete dose based on a current body weight. Underdosing may result in ineffective treatment, and encourage the development of parasite resistance. Consult a veterinarian for assistance in the diagnosis, treatment, and control of parasitism.

Limitations

Administer free choice of beef cattle on pasture that have become accustomed to non-medicated block feeding during an adaptation period of 12 to 19 days. Consult your veterinarian for assistance in the diagnosis, treatment, and control of parasitism.

FDA page: Open in Animal Drugs @ FDA

Species: Gilts • Growing • Pregnant sows • Boars • Beef And Dairy • No Use Class Stated Or Implied • Growing • Zoo Animals • Swine, Feral • Wild Animals
Composition / specifications
Type A medicated articles conatianing 4 percent (18.1 grams per pound), 8 percent (36.2 grams per pound), and 20 percent (90.7 grams per pound) fenbendazole.
Bighorn sheep
Indication

For the treatment and control of: Lungworms (Protostrongylus spp.).

Dosage

10 mg fenbendazole/kg body weight/day x 3 days of treatment

Limitations
Feral Swine
Indication

For the treatment and control of: kidney worms (Stephanurus dentatus), roundworms (Ascaris suum), and nodular worms (Oesophagostomum dentatum).

Dosage

3 mg fenbendazole/kg body weight/day x 3 days of treatment

Limitations
Wildlife and Zoo Ruminants (Subfamily Antilopinae, Hippotraginae, and Caprinae)
Indication

For the treatment and control of: Stomach worms: small stomach worms (Trichostrongylus spp.), barberpole worms (Haemonchus spp.); Intestinal worms: thread-necked intestinal worms (Nematodirus spp.) and whipworms (Trichuris spp.)

Dosage

2.5 mg fenbendazole/kg body weight/day x 3 days of treatment

Limitations
Growing Turkeys
Indication

For the treatment and control of: Gastrointestinal worms: Roundworms, Adults and larvae (Ascaridia dissimilis); Cecal worms, Adults and larvae (Heterakis gallinarum), an important vector of Histomonas meleagridis (Blackhead).

Dosage

14.5 g fenbendazole/ton of feed, to be fed as the sole ration for 6 days

Limitations
Swine (Growing pigs, gilts, pregnant sows, and boars)
Indication

For the treatment and control of: Lungworms: Adult Metastrongylus apri, adult Metastrongylus pudendotectus; Gastrointestinal worms: Adult and larvae (L3, L4 stages, liver, lung, intestinal forms) large roundworms (Ascaris suum), Adult nodular worms (Oesophagostomum dentatum, O. quadrispinulatum), Adult small stomach worms (Hyostrongylus rubidus), Adult and larvae (L2, L3, L4 stages- intestinal mucosal forms) whipworms (Trichuris suis); and Kidney worms: Adult and larvae Stephanurus dentatus.

Dosage

9 mg fenbendazole per kg body weight (4.08 mg fenbendazole per pound) to be fed as the sole ration over a period of 3 to 12 days.

Limitations
Cattle (Dairy and Beef Cattle)
Indication

For the treatment and control of: Lungworms: Adult Dictyocaulus viviparus; Stomach worms: Adult brown stomach worms (Ostertagia ostertagi), Adult and fourth stage larvae barberpole worms (Haemonchus contortus), fourth stage larvae barberpole worms (H. placei), and Adult and fourth stage larvae small stomach worms (Trichostrongylus axei); Intestinal worms (Adult and fourth stage larvae): hookworms (Bunostomum phlebotomum), thread-necked intestinal worms (Nematodirus helvetianus), small intestinal worms (Cooperia punctata & C. oncophora), bankrupt worms (Trichostrongylus colubriformis), and nodular worms (Oesophagostomum radiatum)

Dosage

5 mg fenbendazole per kg body weight in a one (1) day treatment (2.27 mg fenbendazole per pound). Feed as the sole ration for one (1) day. Free-Choice Feeds: Type C free-choice medicated feed must be manufactured by a licensed feed mill according to an approved formula to provide a total of 5 mg per kg body weight fenbendazole over 3 to 6 days.

Limitations
Horses
Indication

For the treatment and control of: Large strongyles (Strongylus edentatus, S. equinus, S. vulgaris, Triodontophorus spp.), Small strongyles (Cyathostomum spp., Cylicocyclus spp., Cylicostephanus spp.), Pinworms (Oxyuris equi), and Ascarids (Parascaris equorum).

Dosage

For the control of large strongyles, small strongyles, and pinworms the recommended dose is 5 mg fenbendazole per kg body weight (2.27 mg fenbendazole per pound) in a one (1) day treatment. For the control of ascarids the recommended dose is 10 mg fenbendazole per kg body weight (4.54 mg fenbendazole per pound) in a one (1) day treatment.

Limitations
Wild quail
Indication

For the treatment and control of Gastrointestinal worms: Cecal worms, (Aulonocephalus spp.).

Dosage

90.7 g of fenbendazole/ton of Type C medicated feed, to be fed for 21 consecutive days.

Limitations

FDA page: Open in Animal Drugs @ FDA

Species: Beef And Dairy
Composition / specifications
100 mg/mL (10%)
Beef and Dairy Cattle
Indication

For the treatment and control of:
Lungworms: Adult Dictyocaulus viviparus;
Stomach worms: Adult brown stomach worms (Ostertagia ostertagi), Adult and fourth stage larvae barberpole worms (Haemonchus contortus & H. placei), and Adult and fourth stage larvae small stomach worms (Trichostrongylus axei);
Intestinal worms (Adult and fourth stage larvae): hookworms (Bunostomum phlebotomum), thread-necked intestinal worms (Nematodirus helvetianus), small intestinal worms (Cooperia punctata & C. oncophora), bankrupt worms (Trichostrongylus colubriformis), and nodular worms (Oesophagostomum radiatum).

Dosage

2.3 mg/lb (5 mg/kg) body weight

Limitations
Goats
Indication

For the treatment and control of:
Stomach worms (adults): Haemonchus contortus and Teladorsagia circumcincta.

Dosage

2.3 mg/lb (5 mg/kg) body weight

Limitations

FDA page: Open in Animal Drugs @ FDA

Species: Beef • Dairy
Composition / specifications
The product is an aqueous paste containing 10 percent fenbendazole.
Beef and dairy cattle
Indication

For the treatment and control of: Lungworms: Adult Dictyocaulus viviparus; Stomach worms: Adult brown stomach worms (Ostertagia ostertagi), Adult and fourth stage larvae barberpole worms (Haemonchus contortus), fourth stage larvae barberpole worms (H. placei), and Adult and fourth stage larvae small stomach worms (Trichostrongylus axei); Intestinal worms (Adult and fourth stage larvae): hookworms (Bunostomum phlebotomum), thread-necked intestinal worms (Nematodirus helvetianus), small intestinal worms (Cooperia punctata & C. oncophora), bankrupt worms (Trichostrongylus colubriformis), and nodular worms (Oesophagostomum radiatum).

Dosage
Administer orally 5 milligrams per kilogram of body weight (2.3 milligrams per pound).
Limitations

Do not underdose. Ensure each animal receives a complete dose based on a current body weight. Underdosing may result in ineffective treatment, and encourage the development of parasite resistance. Consult a veterinarian for assistance in the diagnosis, treatment, and control of parasitism.

FDA page: Open in Animal Drugs @ FDA

Species: Non-Lactating • Beef • Dairy
Composition / specifications
The drug is a suspension containing 10 percent (100 milligrams per milliliter) fenbendazole.
Cattle (beef and dairy)
Indication

For the treatment and control of: Lungworms: Adult Dictyocaulus viviparus; Stomach worms: Adult brown stomach worms (Ostertagia ostertagi), Adult and fourth stage larvae barberpole worms (Haemonchus contortus & H. placei), and Adult and fourth stage larvae small stomach worms (Trichostrongylus axei); Intestinal worms (Adult and fourth stage larvae): hookworms (Bunostomum phlebotomum), thread-necked intestinal worms (Nematodirus helvetianus), small intestinal worms (Cooperia punctata & C. oncophora), bankrupt worms (Trichostrongylus colubriformis), and nodular worms (Oesophagostomum radiatum).

Dosage

Administer orally at a dose of 2.3 mg/lb (5 mg/kg) body weight.

Limitations
Goats
Indication

For the treatment and control of: Stomach worms (adults): Haemonchus contortus and Teladorsagia circumcincta.

Dosage

Administer orally at a dose of 2.3 mg/lb (5 mg/kg) body weight.

Limitations

FDA page: Open in Animal Drugs @ FDA

Species: Horse, Not For Meat Production • Horse, Foals, Not For Food • Pony, Not For Food
Composition / specifications
The product is an aqueous paste containing 10 percent fenbendazole.
Horses
Indication

For the treatment and control of large strongyles (Strongylus edentatus, S. equinus, S. vulgaris), encysted early 3rd stage (hypobiotic), late 3rd stage and 4th stage cyathostome larvae, small strongyles, pinworms (Oxyuris equi), ascarids (Parascaris equorum), and for the control of arteritis caused by 4th stage larvae of Strongylus vulgaris in horses.

Dosage

For large strongyles, small strongyles, and pinworms, the recommended dose is 5 mg/kg (2.3 mb/lb) administered once orally. For ascarids, the recommended dose is 10 mg/kg (4.6 mg/lb) administered once orally. For treatment and control of hypobiotic (encysted early 3rd stage), late 3rd stage, and 4th stage cyathostome larvae, as well as 4th stage Strongylus vulgaris larvae, the recommended dose is 10 mg/kg (4.6 mg/lb) administered orally daily for 5 consecutive days.

Limitations

Do not use in horses intended for human consumption. Consult your veterinarian for assistance in the diagnosis, treatment and control of parasitism.

FDA page: Open in Animal Drugs @ FDA

Species: Dog, No Use Class Stated Or Implied
Composition / specifications
The drug is in granular form containing 22 percent (222 milligrams per gram) fenbendazole.
Dogs
Indication
For the treatment and control of ascarids (Toxocara canis, Toxascaris leonina), hookworms (Ancylostoma caninum, Uncinaria stenocephala), whipworms (Trichuris vulpis), and tapeworms (Taenia pisiformis).
Dosage
50 milligrams per kilogram (22.7 milligrams per pound) daily for 3 consecutive days.
Limitations

Mix the appropriate amount of drug with a small amount of the usual food. Dry dog food may require slight moistening to facilitate mixing. Medicated food must be fully consumed. 

FDA page: Open in Animal Drugs @ FDA

Species: Swine, Except For Nursing Piglets • Breeders • Broilers • Layers • Replacements
Composition / specifications
200 mg/mL
Swine (Except Nursing Piglets)
Indication

For the treatment and control of: Lungworms: Adult Metastrongylus apri, adult Metastrongylus pudendotectus; Gastrointestinal worms: Adult and larvae (L3, L4 stages, liver, lung, intestinal forms) large roundworms (Ascaris suum), Adult nodular worms (Oesophagostomum dentatum, O. quadrispinulatum), Adult small stomach worms (Hyostrongylus rubidus), Adult and larvae (L2, L3, L4 stages- intestinal mucosal forms) whipworms (Trichuris suis); and Kidney worms: Adult and larvae Stephanurus dentatus.

Dosage
2.2 mg fenbendazole/kg body weight (BW) (1 mg/lb) daily for 3 consecutive days
Limitations
Chickens (broilers, replacements, breeding, and laying hens)
Indication

For the treatment and control of adult Ascaridia galli in broiler chickens and replacement chickens and for the treatment and control of adult A. galli and Heterakis gallinarum in breeding chickens and laying hens.

Dosage
1 mg/kg BW (0.454 mg/lb)/day for 5 consecutive days
Limitations

FDA page: Open in Animal Drugs @ FDA

Usage

For the treatment and control of large strongyles ( Strongylus edentatus , S. equinus , S. vulgaris , Triodontophorus spp.),small strongyles ( Cyathostomum spp., Cylicocyclus spp., Cylicostephanus spp., Cylicodontophorus spp.), and pinworms ( Oxyuris equi ). For the treatment and control of ascarids ( Parascaris equorum ). For the control of infections of large strongyles (Strongylus edentatus, S. equinus, S. vulgaris), small strongyles, pinworms (Oxyuris equi), and ascarids (Parascaris equorum).

Source: FDA Animal Drugs @ FDA • Reference

Contraindications

Sprinkle the appropriate amount of drug on a small amount of the usual grain ration. Prepare for each horse individually. Withholding feed or water is not necessary. Retreat in 6 to 8 weeks if required. Do not use in horses intended for food. Consult your veterinarian assistance in the diagnosis, treatment, and control of parasitism. Do not use in horses intended for human consumption. Consult your veterinarian for assistance in the diagnosis, treatment and control of parasitism. Mix the appropriate amount of drug with a small amount of the usual food. Dry dog food may require slight moistening to facilitate mixing. Medicated food must be fully consumed.

Top Reported Reactions (openFDA)

De-duplicated reaction terms grouped by body system from FDA openFDA reports (not verified; does not prove causation).

Digestive
Vomiting (1) • Dog Diarrhea (1) • Dog Bloody diarrhoea (1) • Dog

Showing top 5 for Digestive.

Skin & allergy
Hair loss (1) • Dog

Showing top 5 for Skin & allergy.

Neurologic
Unsteady walking (1) • Dog Head tremor (1) • Dog

Showing top 5 for Neurologic.

Behavior
Behavioral disorder (1) • Cat

Showing top 5 for Behavior.

Other
Trouble breathing (1) • Cat Head down (1) • Cat Gingivitis (1) • Cat Fibrosarcoma (1) • Cat Eye neoplasm NOS (1) • Cat
Show more (20)
Eosinophilia (1) • Dog Elevated renal parameters (1) • Cat Elevated globulins (1) • Cat Elevated gamma-glutamyl transferase (1) • Dog Elevated amylase (1) • Cat Dry mucous membrane (1) • Dog Drug dose administration interval too short (1) • Dog Digestive tract neoplasm NOS (1) • Cat Decreased packed cell volume (1) • Cat Decreased body temperature (1) • Cat Decreased blood urea nitrogen (BUN) or creatinine (1) • Cat Decreased activity (1) • Cat Death by euthanasia (1) • Cat Death (1) • Cat Cough (1) • Dog Bloody stool (1) • Dog Bacterial skin infection NOS (1) • Dog Anaemia NOS (1) • Cat Abnormal radiograph finding (1) • Cat Abnormal cytology (1) • Cat

Showing top 5 for Other.

Data source: FDA openFDA Animal & Veterinary adverse event reports.

Adverse Event Case Summaries (openFDA)

These are individual FDA adverse event reports. They are unverified and do not prove the medication caused the reaction.

Dog, Terrier - Yorkshire, Female, 2 month, 0.395 kilogram • Drug: MSK, Unassigned, Unknown • Reactions: Shaking, Drooling, Tiredness (lethargy), Head tremor, Unsteady walking (ataxia)… • Outcome: Ongoing

  • Report ID: USA-USFDACVM-2025-US-074155
  • Serious AE: Yes
  • Treated For AE: Yes
  • Sex: Female
  • Age: 2.00 Month
  • Weight: 0.395 Kilogram
  • Case-reported brand: MSK
  • Case-reported manufacturer: MSK
  • Route: Unknown
  • Form: Unassigned
Reactions Reported:
Shaking Drooling Tiredness (lethargy) Head tremor Unsteady walking (ataxia) Not eating Not drinking Dry mucous membrane Eosinophilia Thrombocytosis Elevated gamma-glutamyl transferase Hypoglycaemia Hypokalaemia Seizure NOS
Outcomes: Ongoing

Dog, Hound (unspecified), Male, 3 year, 23.133 kilogram • Drug: MSK, Unknown • Reactions: Lack of efficacy (endoparasite) - tapeworm • Outcome: Outcome Unknown

  • Report ID: USA-USFDACVM-2025-US-074732
  • Serious AE: No
  • Treated For AE: No
  • Sex: Male
  • Age: 3.00 Year
  • Weight: 23.133 Kilogram
  • Case-reported brand: MSK
  • Case-reported manufacturer: MSK
  • Route: Unknown
Reactions Reported:
Lack of efficacy (endoparasite) - tapeworm
Outcomes: Outcome Unknown

Dog, Female, 8.07 year, 29.3 kilogram • Drug: MSK • Reactions: Lack of efficacy (endoparasite) - heartworm, Weight fluctuation • Outcome: Ongoing

  • Report ID: USA-USFDACVM-2025-US-073892
  • Serious AE: No
  • Treated For AE: Yes
  • Sex: Female
  • Age: 8.07 Year
  • Weight: 29.300 Kilogram
  • Case-reported brand: MSK
  • Case-reported manufacturer: MSK
Reactions Reported:
Lack of efficacy (endoparasite) - heartworm Weight fluctuation
Outcomes: Ongoing

Dog, Greyhound, Male, 11 year, 40.823 kilogram • Drug: MSK, Granule, Oral • Reactions: Lack of efficacy (endoparasite) - hookworm • Outcome: Ongoing

  • Report ID: USA-USFDACVM-2025-US-073022
  • Serious AE: Yes
  • Treated For AE: Yes
  • Sex: Male
  • Age: 11.00 Year
  • Weight: 40.823 Kilogram
  • Case-reported brand: MSK
  • Case-reported manufacturer: MSK
  • Route: Oral
  • Form: Granule
Reactions Reported:
Lack of efficacy (endoparasite) - hookworm
Outcomes: Ongoing

Dog, Greyhound, Male, 3 year, 33.566 kilogram • Drug: MSK, Granule, Oral, Frequency: 1 per year • Reactions: Lack of efficacy (endoparasite) - hookworm, Medication error NOS, Drug dose administration interval too short • Outcome: Ongoing

  • Report ID: USA-USFDACVM-2025-US-073011
  • Serious AE: Yes
  • Treated For AE: Yes
  • Sex: Male
  • Age: 3.00 Year
  • Weight: 33.566 Kilogram
  • Case-reported brand: MSK
  • Case-reported manufacturer: MSK
  • Route: Oral
  • Form: Granule
  • Frequency: 1 per year
Reactions Reported:
Lack of efficacy (endoparasite) - hookworm Medication error NOS Drug dose administration interval too short
Outcomes: Ongoing

Dog, Greyhound, Female, 7 year, 29.937 kilogram • Drug: MSK, Granule, Oral • Reactions: Lack of efficacy (endoparasite) - hookworm, Medication error NOS, Drug dose administration interval too short, Overdose • Outcome: Ongoing

  • Report ID: USA-USFDACVM-2025-US-072921
  • Serious AE: Yes
  • Treated For AE: Yes
  • Sex: Female
  • Age: 7.00 Year
  • Weight: 29.937 Kilogram
  • Case-reported brand: MSK
  • Case-reported manufacturer: MSK
  • Route: Oral
  • Form: Granule
Reactions Reported:
Lack of efficacy (endoparasite) - hookworm Medication error NOS Drug dose administration interval too short Overdose
Outcomes: Ongoing

Cat, Domestic Shorthair, Female, 1 month, 0.699 kilogram • Drug: MSK, Liquid, Oral, Dose: 0.20 mL per animal • Reactions: Death, Medication error NOS • Outcome: Died

  • Report ID: USA-USFDACVM-2025-US-072673
  • Serious AE: Yes
  • Treated For AE: No
  • Sex: Female
  • Age: 1.00 Month
  • Weight: 0.699 Kilogram
  • Case-reported brand: MSK
  • Case-reported manufacturer: MSK
  • Route: Oral
  • Form: Liquid
  • Dose: 0.20 mL per animal
Reactions Reported:
Death Medication error NOS
Outcomes: Died

Dog, Catahoula Leopard Dog, Female, 6 year, 28.803 kilogram • Drug: MSK, Unknown • Reactions: Pica NOS, Diarrhea, Bloody stool, Weight loss • Outcome: Ongoing

  • Report ID: USA-USFDACVM-2025-US-071202
  • Serious AE: No
  • Treated For AE: Yes
  • Sex: Female
  • Age: 6.00 Year
  • Weight: 28.803 Kilogram
  • Case-reported brand: MSK
  • Case-reported manufacturer: MSK
  • Route: Unknown
Reactions Reported:
Pica NOS Diarrhea Bloody stool Weight loss
Outcomes: Ongoing

Data source: FDA openFDA Animal & Veterinary adverse event reports.

Overdose Information

No approved overdose-management text is linked yet. If overdose is suspected, contact a veterinarian or emergency clinic immediately.

Storage & Handling

No approved storage guidance is linked yet for this ingredient. Use manufacturer packaging and veterinary guidance for handling/storage.

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