Start triage first, then route to emergency care.
Need urgent help? Start triage first, then route to emergency care.
Roxee Medication Guide
Medication reference facts with explicit FDA-approval, off-label, source-limited, and safety context. Roxee does not sell, prescribe, or dispense medications.
Veterinary professional?
These are the reference facts Roxee uses on browse cards and quick facts.
Sponsor, product, and application records imported from Animal Drugs @ FDA.
openFDA reaction terms and case summaries are supporting evidence, not proof of causality.
Drug type: Generic ingredient • Generic profile • No FDA branded products linked
Species: Both
Manufacturer: Multiple FDA labelers
Merged from the current Roxee medication system with field-level provenance, freshness, and completeness tracking.
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.
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).
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): Lack of efficacy (endoparasite) - hookworm, Vomiting, INEFFECTIVE, HOOKS, Diarrhoea, Other abnormal test result NOS, Lack of efficacy (endoparasite) - tapeworm.
Choose a pet, confirm current or past, and optionally add reminder notes.
Sign in to save this medication to your pet profile.
Sign in to continueStart 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:
When to call the vet:
What to tell or ask your vet today:
A source-aware map of what to know, what is uncertain, and what to verify with your veterinarian.
Roxee has limited cited overview evidence for Fenbendazole; use the official documents and your veterinarian's instructions for product-specific decisions.
32 tracked reaction signals; 32 reported cases; 21 serious reports; 2 species groups. These are reporting and label-derived signals for interpretation with a veterinarian.
Adverse-event reports help form a watch list, but they do not prove the medication caused the reaction and they are not a risk ranking between medications.
Official labels, package inserts, and reviewed summaries carry more weight than isolated reports.
Case reports and openFDA terms are useful for pattern awareness, but they are incomplete, can include multiple exposures, and do not estimate an individual pet's probability of harm.
Unsteady walking (ataxia) (1 reports), Distension of abdomen (1 reports), Digestive tract neoplasm NOS (1 reports), Decreased red blood cell count (1 reports), Decreased percentage of reticulocytes (1 reports)
Digestive (2), Skin & allergy (1), Neurologic (2), Behavior (1)
Dog (19 reports), Cat (13 reports)
['Beagle', 'Dog (unknown)'] (2), Domestic Shorthair (2), ['Retriever - Golden', 'Poodle (unspecified)'] (1), Retriever - Labrador (1). These are report metadata, not proof that a breed is at higher risk.
Verify whether Fenbendazole fits the pet's species, current diagnosis, age, weight, organ status, pregnancy/lactation status, and concurrent medications.
Separate label-backed warnings from adverse-event reports and owner observations before changing the plan.
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
Repeated vomiting or diarrhea. Severe lethargy (hard to wake, very low energy). Collapse or fainting.
Review status / Updated / Sources
Review status: Clinical reviewer not listed
Updated: February 12, 2026, 10:44 PM UTC
Side effects to monitor:
Most reported reactions:
Emergency warning signs:
Source-backed clinical checkpoints for quick review.
Official label facts first, then secondary summaries. Marketing content is separated below.
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.
Snapshot first, detailed rows second. This section summarizes signal data and is not a diagnosis.
Filter stored openFDA reports by pet and report attributes. Counts describe reports in this data set, not risk.
Received 2026-03-25 · MSK · MSK
Received 2026-03-24 · MSK · MSK
Received 2026-03-19 · MSK · MSK
Received 2026-03-17 · MSK · MSK
Received 2026-03-16 · MSK · MSK
Received 2026-03-13 · MSK · MSK
Received 2026-02-16 · MSK · MSK
Received 2026-02-16 · MSK · MSK
Received 2025-12-16 · MSK · MSK
Received 2025-12-11 · MSK · MSK
Received 2025-12-11 · MSK · MSK
Received 2025-12-11 · MSK · MSK
Received 2025-12-11 · MSK · MSK
Received 2025-12-11 · MSK · MSK
Received 2025-12-04 · MSK · MSK
Received 2025-12-02 · MSK · MSK
Received 2025-11-21 · MSK · MSK
Received 2025-11-18 · MSK · MSK
Received 2025-11-14 · MSK · MSK
Received 2025-11-06 · MSK · MSK
Received 2025-10-31 · MSK · MSK
Received 2025-10-17 · MSK · MSK
Tap or hover a reaction to see what it means in plain language.
| Reaction | Body system | Cases | Species | Serious cases |
|---|---|---|---|---|
| Neurologic | 1 | Dog | 1 | |
| Other | 1 | Dog | 1 | |
| Other | 1 | Cat | 1 | |
| Other | 1 | Dog | 1 | |
| Other | 1 | Dog | 1 | |
| Other | 1 | Cat | 1 | |
| Other | 1 | Dog | 1 | |
| Other | 1 | Dog | 1 |
Species coverage: Dog (19) Cat (13)
| Reaction | Body system | Species | Seriousness | Frequency | Reports |
|---|---|---|---|---|---|
| Neurologic | Dog | Serious | - | 1 | |
| Skin & allergy | Dog | Non-serious | - | 1 | |
| Other | Dog | Serious | - | 1 | |
| Other | Cat | Non-serious | - | 1 | |
| Other | Cat | Serious | - | 1 | |
| Digestive | Dog | Non-serious | - | 1 | |
| Neurologic | Cat | Non-serious | - | 1 | |
| Other | Dog | Serious | - | 1 | |
| Other | Dog | Serious | - | 1 | |
| Other | Cat | Serious | - | 1 | |
| Other | Dog | Serious | - | 1 | |
| Other | Dog | Serious | - | 1 | |
| Other | Cat | Serious | - | 1 | |
| Other | Cat | Serious | - | 1 | |
| Other | Cat | Serious | - | 1 | |
| Other | Dog | Serious | - | 1 | |
| Other | Cat | Serious | - | 1 | |
| Other | Dog | Non-serious | - | 1 | |
| Other | Dog | Serious | - | 1 | |
| Other | Dog | Serious | - | 1 | |
| Other | Dog | Non-serious | - | 1 | |
| Digestive | Dog | Non-serious | - | 1 | |
| Other | Dog | Serious | - | 1 | |
| Other | Cat | Non-serious | - | 1 | |
| Behavior | Cat | Serious | - | 1 | |
| Other | Dog | Non-serious | - | 1 | |
| Other | Dog | Non-serious | - | 1 | |
| Other | Cat | Serious | - | 1 | |
| Other | Dog | Non-serious | - | 1 | |
| Other | Cat | Serious | - | 1 | |
| Other | Cat | Serious | - | 1 | |
| Other | Dog | Serious | - | 1 |
The most useful source links appear first; full previews and metadata stay in the veterinary/professional layer.
Use original documents to confirm product-specific warnings, ingredients, and handling details with your veterinarian.
Full source previews and metadata remain in the veterinary/professional layer.
Official label / PI · EA
Official label / PI · FONSI
Official label / PI · EA
Official label / PI · FONSI
Official label / PI · EA
Official label / PI · FONSI
Official label / PI · EA
Official label / PI · FONSI
Official label / PI · EA
Official label / PI · FONSI
Official label / PI · EA
Official label / PI · FONSI
Official label / PI · EA
Official label / PI · FONSI
SPL · SPL
Rendered from Roxee's cached FDA SPL package contents for on-page reading. Use Open original for the raw FDA ZIP/XML source.
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).
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.
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.
SPL · SPL
Rendered from Roxee's cached FDA SPL package contents for on-page reading. Use Open original for the raw FDA ZIP/XML source.
For the treatment and control of: Lungworms (Protostrongylus spp.).
10 mg fenbendazole/kg body weight/day x 3 days of treatment
For the treatment and control of: kidney worms (Stephanurus dentatus), roundworms (Ascaris suum), and nodular worms (Oesophagostomum dentatum).
3 mg fenbendazole/kg body weight/day x 3 days of treatment
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.)
2.5 mg fenbendazole/kg body weight/day x 3 days of treatment
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).
14.5 g fenbendazole/ton of feed, to be fed as the sole ration for 6 days
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.
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.
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)
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.
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).
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.
For the treatment and control of Gastrointestinal worms: Cecal worms, (Aulonocephalus spp.).
90.7 g of fenbendazole/ton of Type C medicated feed, to be fed for 21 consecutive days.
SPL · SPL
Rendered from Roxee's cached FDA SPL package contents for on-page reading. Use Open original for the raw FDA ZIP/XML source.
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).
2.3 mg/lb (5 mg/kg) body weight
For the treatment and control of:
Stomach worms (adults): Haemonchus contortus and Teladorsagia circumcincta.
2.3 mg/lb (5 mg/kg) body weight
SPL · SPL
Rendered from Roxee's cached FDA SPL package contents for on-page reading. Use Open original for the raw FDA ZIP/XML source.
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).
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.
SPL · SPL
Rendered from Roxee's cached FDA SPL package contents for on-page reading. Use Open original for the raw FDA ZIP/XML source.
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).
Administer orally at a dose of 2.3 mg/lb (5 mg/kg) body weight.
For the treatment and control of: Stomach worms (adults): Haemonchus contortus and Teladorsagia circumcincta.
Administer orally at a dose of 2.3 mg/lb (5 mg/kg) body weight.
SPL · SPL
Rendered from Roxee's cached FDA SPL package contents for on-page reading. Use Open original for the raw FDA ZIP/XML source.
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).
Administer orally at a dose of 2.3 mg/lb (5 mg/kg) body weight.
For the treatment and control of: Stomach worms (adults): Haemonchus contortus and Teladorsagia circumcincta.
Administer orally at a dose of 2.3 mg/lb (5 mg/kg) body weight.
SPL · SPL
Rendered from Roxee's cached FDA SPL package contents for on-page reading. Use Open original for the raw FDA ZIP/XML source.
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.
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.
Do not use in horses intended for human consumption. Consult your veterinarian for assistance in the diagnosis, treatment and control of parasitism.
SPL · SPL
Rendered from Roxee's cached FDA SPL package contents for on-page reading. Use Open original for the raw FDA ZIP/XML source.
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.
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.
Do not use in horses intended for human consumption. Consult your veterinarian for assistance in the diagnosis, treatment and control of parasitism.
SPL · SPL
Rendered from Roxee's cached FDA SPL package contents for on-page reading. Use Open original for the raw FDA ZIP/XML source.
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.
SPL · SPL
Rendered from Roxee's cached FDA SPL package contents for on-page reading. Use Open original for the raw FDA ZIP/XML source.
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.
SPL · SPL
Rendered from Roxee's cached FDA SPL package contents for on-page reading. Use Open original for the raw FDA ZIP/XML source.
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.
SPL · SPL
Rendered from Roxee's cached FDA SPL package contents for on-page reading. Use Open original for the raw FDA ZIP/XML source.
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.
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.
SPL · Structured Product Label
SPL · Structured Product Label
SPL · Structured Product Label
SPL · Structured Product Label
SPL · Structured Product Label
SPL · Structured Product Label
SPL · Structured Product Label
SPL · Structured Product Label
SPL · Structured Product Label
SPL · Structured Product Label
SPL · Structured Product Label
SPL · Structured Product Label
SPL · Structured Product Label
FOI · FOI
FOI · FOI
FOI · FOI
FOI · FOI
FOI · FOI
FOI · FOI
FOI · FOI
FOI · FOI
FOI · FOI
FOI · FOI
FOI · FOI
FOI · FOI
FOI · FOI
FOI · FOI
FOI · FOI
FOI · FOI
FOI · FOI
FOI · FOI
FOI · FOI
FOI · FOI
FOI · FOI
FOI · FOI
FOI · FOI
FOI · FOI
FOI · FOI summary
FOI · FOI summary
Canonical medication sections are above. This legacy block remains available for deeper cross-reference without cluttering the primary workflow.
Quick facts and links to official labeling and safety signals.
Diagnosis-code mappings are not available for this medication yet.
Global Pet owner/Vet mode is controlled in the header. This section avoids duplicate in-page persona tabs.
Normalized identifiers (NDC/NADA/ANADA) and package metadata from regulator listings.
| 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 | - |
Documents are tiered by source trust: Official, Clinical, Manufacturer, Marketing.
Every non-trivial field is expected to include provenance and update timestamps.
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).
Extracted from FDA Animal Drugs @ FDA product labeling. Always confirm details with your veterinarian.
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).
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.
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
For the treatment and control of: Lungworms (Protostrongylus spp.).
10 mg fenbendazole/kg body weight/day x 3 days of treatment
For the treatment and control of: kidney worms (Stephanurus dentatus), roundworms (Ascaris suum), and nodular worms (Oesophagostomum dentatum).
3 mg fenbendazole/kg body weight/day x 3 days of treatment
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.)
2.5 mg fenbendazole/kg body weight/day x 3 days of treatment
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).
14.5 g fenbendazole/ton of feed, to be fed as the sole ration for 6 days
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.
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.
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)
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.
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).
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.
For the treatment and control of Gastrointestinal worms: Cecal worms, (Aulonocephalus spp.).
90.7 g of fenbendazole/ton of Type C medicated feed, to be fed for 21 consecutive days.
FDA page: Open in Animal Drugs @ FDA
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).
2.3 mg/lb (5 mg/kg) body weight
For the treatment and control of:
Stomach worms (adults): Haemonchus contortus and Teladorsagia circumcincta.
2.3 mg/lb (5 mg/kg) body weight
FDA page: Open in Animal Drugs @ FDA
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).
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
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).
Administer orally at a dose of 2.3 mg/lb (5 mg/kg) body weight.
For the treatment and control of: Stomach worms (adults): Haemonchus contortus and Teladorsagia circumcincta.
Administer orally at a dose of 2.3 mg/lb (5 mg/kg) body weight.
FDA page: Open in Animal Drugs @ FDA
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.
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.
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
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
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.
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.
FDA page: Open in Animal Drugs @ FDA
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
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.
De-duplicated reaction terms grouped by body system from FDA openFDA reports (not verified; does not prove causation).
Showing top 5 for Digestive.
Showing top 5 for Skin & allergy.
Showing top 5 for Neurologic.
Showing top 5 for Behavior.
Showing top 5 for Other.
Data source: FDA openFDA Animal & Veterinary adverse event reports.
These are individual FDA adverse event reports. They are unverified and do not prove the medication caused the reaction.
Dog, ['Beagle', 'Dog (unknown)'], Male, 1 year, 14.15 kilogram • Drug: MSK, Unknown • Reactions: Lack of efficacy (endoparasite) - hookworm • Outcome: Outcome Unknown
Dog, ['Retriever - Golden', 'Poodle (unspecified)'], Male, 5 year, 27.699 kilogram • Drug: MSK, Unknown • Reactions: Lack of efficacy (endoparasite) - hookworm, Licking, Localised pain NOS, Pododermatitis, Allergy NOS • Outcome: Outcome Unknown
Cat, Domestic Shorthair, Male, 11 week, 1.4 kilogram • Drug: MSK, Unknown • Reactions: Soft stool, Bloated, Disorder of gastrointestinal flora, Vomiting, Depression… • Outcome: Recovered/Normal
Dog, Retriever - Labrador, Female, 5 year, 36.73 kilogram • Drug: MSK, Oral • Reactions: Lack of efficacy (endoparasite) - hookworm • Outcome: Outcome Unknown
Dog, ['Siberian Husky', 'Shepherd Dog - German'], Male, 9 year, 41.277 kilogram • Drug: MSK, Unknown • Reactions: Other abnormal test result NOS, Lack of efficacy (endoparasite) - heartworm, Tiredness (lethargy), Death by euthanasia, Blood in urine… • Outcome: Euthanized
Dog, ['Beagle', 'Dog (unknown)'], Female, 8 year, 22.044 kilogram • Drug: MSK, Unknown • Reactions: Lack of efficacy (endoparasite) - roundworm NOS, Lack of efficacy (endoparasite) - hookworm, Excessive appetite, Anal and rectal disorder NOS • Outcome: Ongoing
Dog, Crossbred Canine/dog, Male, 9 week • Drug: MSK, Unknown • Reactions: Death by euthanasia, Lack of efficacy (bacteria) - Bordetella, Skin lump, Decreased haemoglobin, Hypokalaemia… • Outcome: Euthanized
Cat, Domestic Shorthair, Male, 7 month, 2.72 kilogram • Drug: MSK, Unknown • Reactions: Hair loss NOS • Outcome: Outcome Unknown
Data source: FDA openFDA Animal & Veterinary adverse event reports.
No approved overdose-management text is linked yet. If overdose is suspected, contact a veterinarian or emergency clinic immediately.
No approved storage guidance is linked yet for this ingredient. Use manufacturer packaging and veterinary guidance for handling/storage.
Let others know your experience or advice regarding this medication.
This medication has not been reviewed by a veterinarian yet.