Agonist at nicotinic acetylcholine receptors on nematode muscle, causing sustained contraction and paralysis. Also stimulates cell-mediated immunity (T-lymphocyte function) by mimicking thymic hormones — used as immunostimulant.
At a glance
Class
Anthelmintic / Immunostimulant
Storage
Store at room temperature below 30°C
Dosing
Anthelmintic use largely replaced by fenbendazole/pyrantel
Frequency
Once (anthelmintic); q48h (immunomodulator)
Cats are very sensitive to levamisole toxicity
Educational reference only
This information is provided for educational purposes and is not a substitute for professional veterinary advice, diagnosis, or treatment. Always consult a qualified veterinarian before administering any medication to your pet.
Find a vet near you →Safety
Neurological signsCBC with immunomodulatory useFecal exam post-treatment
Educational reference only
This information is provided for educational purposes and is not a substitute for professional veterinary advice, diagnosis, or treatment. Always consult a qualified veterinarian before administering any medication to your pet.
Find a vet near you →Interactions
No documented interactions.
FAQs
Frequently asked questions
›What is Levamisole?
Levamisole is a anthelmintic / immunostimulant used in pets. Agonist at nicotinic acetylcholine receptors on nematode muscle, causing sustained contraction and paralysis. Also stimulates cell-mediated immunity (T-lymphocyte function) by mimicking thymic hormones — used as immunostimulant.
›What is Levamisole used for in pets?
Levamisole is used in veterinary medicine for: Anthelmintic use largely replaced by fenbendazole/pyrantel; Cats are very sensitive to levamisole toxicity.
›What is the Levamisole dose for dogs?
For dogs, Levamisole is typically dosed as follows — Anthelmintic use largely replaced by fenbendazole/pyrantel: 5–8 mg/kg PO Once (anthelmintic); q48h (immunomodulator). Always consult your veterinarian for a dose tailored to your pet's weight, age, and condition.
›What is the Levamisole dose for cats?
For cats, Levamisole is typically dosed as follows — Cats are very sensitive to levamisole toxicity: undefined undefined N/A N/A. Always consult your veterinarian for a dose tailored to your pet's weight, age, and condition.
›Does Levamisole need a prescription?
Yes. Levamisole is a prescription medication and should only be administered under veterinary supervision.
Educational reference only
This information is provided for educational purposes and is not a substitute for professional veterinary advice, diagnosis, or treatment. Always consult a qualified veterinarian before administering any medication to your pet.
Find a vet near you →References
CDSCO approvals (India) — 5
Levamisole +oxyclozanide suspension
M/s Tebma Chemical Industries · Approved 29.09.1993
for veterinary use
Each 5 ml of the suspension contains: Levamisole HCl IP 112.5 mg eq to levamisol
M/s. Gopaldas & Vishramdas · Approved 07.08.2014
For control and treatment of Gastrointestinal and pulmonary Nematodes, liver Flukes and Amphistomes.
Levamisole hydrochloride IP 15.0% w/w Eq. to Levamisole 12.7% w/w + Anhydrous Co
M/s. Gopal Das Vishram & Co. Ltd · Approved 30.04.2015
For control and treatment of gastrointestinal and pulmonary nematodes
Levamisole HCl IP 2.0gm + Oxyclozanide IP 4.0gm (veterinary product) (Additional
M/s. Akums Drugs & Pharmaceuticals Ltd · Approved 08.06.2015
For the treatment of all flukes (Fasciola spp) & Tapeworm segmnts (Moniezia spp.) for cattle and sheep. Also for the var
Each Bolus (Tablet) contains: Levamisole HCl IP 1.5 g eq to levamisole 1.27 g +
M/s. VIBRO PHARMA · Approved 21.08.2015
For control and treatment of Gastrointestinal and pulmonary Nematodes, liver Flukes and Amphistomes.
Source: CDSCO Veterinary Drug Approval Registry (1969–2026)
References
The PetCare.AI drug reference is built from 13 authoritative sources cited across 580 drug monographs.
Textbooks & handbooks — 5
- Plumb's Veterinary Drug Handbook
- Withrow & MacEwen's Small Animal Clinical Oncology
- Merck Veterinary Manual
- NRC Nutrient Requirements of Dogs and Cats
- Veterinary Pharmacology and Therapeutics (Riviere & Papich)
Clinical guidelines & consensus — 4
- ASPCA Animal Poison Control Center Guidelines
- AAHA Diabetes Management Guidelines
- ASPCA Poison Control Guidelines
- RECOVER CPR Guidelines
Journals & peer-reviewed studies — 2
- EPIC Study (J Vet Intern Med 2016)
- JVIM FAT CAT Study
Regulatory & approvals — 1
- CDSCO Veterinary Drug Approval Registry (1969–2026)
Databases — 1
- Washington State University VCPL MDR1 Database