Description
Wormentel 150 mg (Fenbendazole 150 mg)
Wormentel 150 mg contains fenbendazole 150 mg and is presented as a fenbendazole tablet product. Fenbendazole is an antiparasitic medicine used in veterinary medicine for certain parasitic worm infections in animals. Product indications, species, dosage, treatment duration, and withdrawal requirements depend on the specific approved product and its label.
Important: Fenbendazole products approved by the U.S. FDA are animal medicines. Wormentel 150 mg should not be presented or used as an FDA-approved human medicine. People should not self-treat with veterinary fenbendazole.
What Is Fenbendazole?
Fenbendazole belongs to the benzimidazole class of antiparasitic medicines. It works against susceptible parasites by interfering with processes that parasites need for energy production and cellular function.
FDA records identify several fenbendazole products for veterinary use. Approved uses vary by animal species and product. Therefore, the label for the particular product should guide its use.
Wormentel 150 mg Product Information
- Product: Wormentel 150 mg
- Active ingredient: Fenbendazole
- Strength: 150 mg per tablet
- Dosage form: Tablet
- Pack shown: 10 × 10 tablets
- Manufacturer shown on packaging: Kachhela
- Category: Veterinary antiparasitic medicine
What Is Fenbendazole Used For?
Veterinary fenbendazole products are used to treat or control certain gastrointestinal and other parasitic worms. The approved indication depends on the product and animal species.
For example, FDA-approved fenbendazole products have indications involving parasites such as roundworms, hookworms, whipworms, tapeworms, stomach worms, intestinal worms, and lungworms in particular animal species.
Because indications differ between products, do not assume that every fenbendazole tablet treats every parasite or every animal.
How Does Fenbendazole Work?
Fenbendazole is a benzimidazole antiparasitic drug. It interferes with important biological processes in susceptible parasites, including energy metabolism and microtubule-related functions.
As a result, susceptible parasites cannot maintain normal cellular activity and may eventually die or become unable to reproduce effectively.
Is 150 mg the Correct Dose?
150 mg describes the tablet strength, not a universal dose. The correct amount depends on the animal species, body weight, parasite, specific product label, treatment duration, and veterinary instructions.
For that reason, do not calculate an animal’s treatment from the tablet strength alone. Also, do not transfer dosing information from another fenbendazole product, species, or formulation.
FDA-approved fenbendazole products can have different concentrations, dosage forms, indications, and directions. A veterinarian can determine which product and regimen are appropriate for a particular animal.
How to Use Fenbendazole Safely
- Confirm the animal species and diagnosis with a veterinarian when appropriate.
- Check the product label before administration.
- Follow the prescribed amount and treatment duration.
- Do not extend treatment without veterinary guidance.
- Do not combine deworming medicines without professional advice.
- Keep veterinary medicines away from children and people who should not take them.
Proper parasite identification also matters. Using an antiparasitic medicine unnecessarily can contribute to resistance and may expose an animal to avoidable adverse effects.
Fenbendazole for Dogs and Cats
FDA-approved fenbendazole products exist for certain veterinary uses in dogs and cats. However, approval applies to specific products, indications, and directions.
For example, FDA reports that fenbendazole was first approved for dogs in 1983 for specific intestinal parasites. The labeled regimen for the referenced dog products is product-specific and should not automatically be applied to Wormentel 150 mg.
Therefore, pet owners should follow the label of the actual product prescribed or recommended by their veterinarian.
Fenbendazole for Horses and Other Animals
Fenbendazole is also used in veterinary medicine for certain parasites affecting other animal species. However, the appropriate product and treatment schedule can vary substantially between species.
For food-producing animals, additional withdrawal or withholding requirements can apply. Always follow the approved product label and veterinary instructions before treating livestock or other food-producing animals.
Fenbendazole Side Effects and Safety
Animals can experience adverse effects from medicines, including antiparasitic drugs. The risk can depend on the product, species, dose, treatment duration, and individual animal factors.
FDA has reported cases of bone marrow hypoplasia and pancytopenia in dogs receiving fenbendazole for longer than the labeled treatment duration. The reported cases involved treatment lasting 5 to 14 days rather than the labeled 3-day duration for the specific dog products discussed by FDA.
Therefore, extending treatment without veterinary supervision can create unnecessary safety risks.
Contact a veterinarian if an animal develops unusual weakness, loss of appetite, vomiting, diarrhea, pale gums, bleeding, fever, or other concerning symptoms during treatment.
Fenbendazole Drug Interactions
Potential interactions depend on the animal, other medicines, and the specific fenbendazole product. Tell the veterinarian about all prescription medicines, over-the-counter products, supplements, and other antiparasitic treatments the animal receives.
Do not combine multiple dewormers simply because they target parasites. A veterinarian can determine whether combination treatment is appropriate.
Fenbendazole for Food-Producing Animals
Extra care is necessary when using medicines in cattle, goats, and other food-producing animals. Approved products can have specific withdrawal periods for meat or milk.
For example, FDA approved Defendazole, a fenbendazole oral suspension, in January 2026 for specified uses in beef and dairy cattle and goats. That product has specific withdrawal and milk-discard requirements. These directions apply to that approved product and should not be transferred to Wormentel 150 mg tablets.
Can People Take Fenbendazole 150 mg?
Fenbendazole is not established as an FDA-approved human medicine. FDA explains that human drug approval can be verified through databases such as Drugs@FDA, while animal drugs use separate approval systems.
Consequently, people should not use Wormentel 150 mg or another veterinary fenbendazole product for self-treatment. A veterinary drug’s approval does not establish its safety, effectiveness, dosage, or quality for human treatment.
Fenbendazole and Cancer
Fenbendazole should not be promoted as a proven cancer treatment for people. Veterinary approval for parasite treatment does not establish an anticancer indication in humans.
People seeking cancer treatment should discuss evidence-based options with a qualified healthcare professional rather than substituting veterinary medicines for prescribed cancer therapy.
Pregnancy and Lactating Animals
Use during pregnancy or lactation depends on the animal species and the specific product label. Do not assume that a fenbendazole product is appropriate for every pregnant or lactating animal.
A veterinarian should review the animal’s species, pregnancy stage, health status, and the product label before treatment.
What If a Dose Is Missed?
If an animal misses a scheduled dose, follow the product label or contact the veterinarian for instructions. Do not automatically give an extra dose to compensate.
How Should Fenbendazole Tablets Be Stored?
Store Wormentel according to the manufacturer’s packaging instructions. Keep the tablets in their original packaging when practical, protect them from unsuitable temperatures and moisture, and keep them out of reach of children and animals that should not receive the medicine.
Wormentel 150 mg Price and Availability
Price and availability can change according to stock, destination, shipping requirements, and applicable regulations. Check the current product page for the latest information.
Because fenbendazole is a veterinary medicine, customers should also confirm that its intended use and importation are permitted in their location.
Related Fenbendazole Products
Frequently Asked Questions
What is Wormentel 150 mg?
Wormentel 150 mg is a tablet product containing fenbendazole 150 mg. Fenbendazole is an antiparasitic medicine used in veterinary medicine.
Is Wormentel 150 mg a human medicine?
No. Fenbendazole products approved by the FDA are veterinary medicines. Wormentel 150 mg should not be used as a human medicine.
What parasites does fenbendazole treat?
Fenbendazole can treat certain susceptible parasites in specific animal species. The exact parasites covered depend on the approved product and its label.
Can I use the 150 mg tablet based only on animal weight?
No. Tablet strength alone does not establish the correct dose. Species, diagnosis, body weight, product labeling, and treatment duration all matter.
Can fenbendazole be used for cancer?
Fenbendazole does not have an established FDA-approved human cancer indication. It should not replace established cancer treatment.
Can I give fenbendazole for longer than the label says?
Do not extend treatment without veterinary guidance. FDA has reported serious blood-related adverse events in dogs associated with extra-label treatment lasting longer than the labeled duration.
U.S. Regulatory Information
FDA lists fenbendazole among substances associated with FDA-approved animal products. These approvals apply to veterinary products and specific animal uses rather than establishing human approval.
FDA also advises checking the applicable animal-drug approval information and product labeling when determining whether an animal medicine is legally marketed and how it should be used.
FDA: Fenbendazole Veterinary Drug Information
FDA: Fenbendazole Safety Information in Dogs
FDA: How to Check Human Drug Approval
Important Safety Information
- Wormentel 150 mg contains fenbendazole.
- Fenbendazole is used in veterinary medicine for specific animal parasites.
- Do not use veterinary fenbendazole products in people.
- Do not assume that a 150 mg tablet is the correct dose for every animal.
- Follow the specific product label and veterinary instructions.
- Do not extend treatment without professional guidance.
- Food-producing animals may require specific withdrawal periods.
- Keep veterinary medicines away from children and people.
Disclaimer
This information is provided for educational purposes and does not replace veterinary or medical advice. Product indications, directions, availability, regulatory status, and labeling can vary by country and product. Always consult a qualified veterinarian for diagnosis and treatment decisions involving animals.
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