HomeMedicationsAzathioprine
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Toxic: keep away from dogs

Can Dogs HaveAzathioprine?

DogSafe severity score
7/10
⚕️This page is pending review by a licensed veterinarian.
Check Azathioprine for your dog

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Why Azathioprine is dangerous

Azathioprine suppresses rapidly dividing immune and bone-marrow cells. Excessive or repeated dosing can cause delayed bone-marrow suppression, liver injury, pancreatitis, and infection risk.

Signs to watch for

Vomiting, poor appetite, lethargy, diarrhea, fever, bruising or bleeding, delayed weakness

What to do next

Keep the bottle or packaging, count what may be missing, and call for case-specific guidance even if your dog looks normal.

🚨Step-by-step: what to do in the first 10 minutes →
Animal poison control

FAQ

How much Azathioprine is dangerous?

A one-time exposure and repeated dosing errors have different risks, but both need veterinary review because important effects may be delayed.

Can I treat this at home?

Do not induce vomiting or give food, charcoal, or another medicine unless a veterinarian or poison specialist directs you.

When should I call the vet?

Call your veterinarian or an animal poison control center now with the product strength, amount missing, time, and your dog's weight.

Sources
  • Merck Veterinary Manual / FDA drug labeling
Compiled from veterinary poison-control and medical reference sources, including the ASPCA Animal Poison Control Center, the Pet Poison Helpline, and the Merck Veterinary Manual. This is general educational information, not a diagnosis or a substitute for examination by your veterinarian. DogSafe's severity ratings are our own assessment, calculated from published guidance and your dog's weight. In an emergency, call ASPCA Animal Poison Control at 888-426-4435 or the Pet Poison Helpline at 855-764-7661.