Milk Thistle (Silymarin)
Silybum marianum extract (silymarin)
Drug Class
Supplement
Available Forms
Oral capsule, Oral liquid
Approved For
Dosage Guide
Birds: 100-150 mg/kg PO twice daily (avian formulations available). Dogs: 50-250 mg total dose 2-3x daily depending on size. Cats: 50-100 mg total dose twice daily.
This is a general reference only. Always follow your veterinarian's prescribed dosage for your specific pet.
Side Effects
- •Very rare — mild GI upset at high doses
Important Warnings
- !Herbal supplement — quality varies significantly between products
- !Use veterinary-formulated products when available
- !Lactulose may be needed for more advanced liver disease
- !Evidence is largely anecdotal and extrapolated
Contraindications
Do not use this medication in the following situations:
- ✕None documented
Medical Disclaimer
This medication guide is for informational purposes only. Always consult a licensed veterinarian before administering any medication to your pet. Dosages vary based on weight, age, health status, and concurrent medications. Never give human medications to pets without veterinary approval — many common human drugs are toxic or fatal to animals.