Is Amitriptyline (Elavil) Safe for Dogs?
Why it’s a problem
Tricyclic antidepressants affect the heart, blood pressure, and temperature regulation, and dogs are vulnerable to all three. Overdoses have been reported to trigger arrhythmias, dangerously high body temperature, and seizures. Even a modest number of tablets can be serious because the toxic margin is narrow.
How to keep your pet safe
Keep amitriptyline and other older antidepressants in secure storage — pill organizers and purses are frequent sources of pet exposures. Behavior drugs for your dog should only come from your vet’s prescription.
Warning signs to watch for
Vomiting, drooling, severe drowsiness, wobbliness, dilated pupils, dry mouth, rapid or irregular heart rate, fever; severe cases: tremors, seizures, collapse.
When to call the vet
Call your veterinarian or a pet poison hotline immediately — heart-rhythm changes can develop within hours. Have the pill strength available and do not induce vomiting unless a professional directs you.
Common questions
My dog ate a handful of my Elavil — what now?
That is an emergency — tricyclic overdoses can disturb heart rhythm and cause seizures. Call your vet or a pet poison hotline immediately with the estimated number of tablets.
Is amitriptyline ever given to dogs on purpose?
Yes, vets sometimes prescribe it for anxiety or itching, but only at calculated doses. Never share your own tablets — human strengths are not pet strengths.
More medications hazards for dogs
This page is general educational information, not a substitute for professional veterinary advice. Every pet is different — if your animal ate or touched something concerning, contact your veterinarian or a pet poison hotline right away. In the US: Pet Poison Helpline (855) 764-7661, ASPCA Animal Poison Control (888) 426-4435 (fees may apply).