Is Codeine Safe for Dogs?
Why it’s a problem
Codeine converts to morphine in the body, and dogs that eat human tablets or combination products can become deeply sedated. Larger ingestions slow breathing and heart rate, which has been reported to become life-threatening. Combination products with acetaminophen or ibuprofen add a second, often worse, toxicity.
How to keep your pet safe
Keep codeine and all opioid pain pills locked away, including combination cough or pain syrups. For your dog’s pain, use only what your veterinarian prescribes — never your own prescription.
Warning signs to watch for
Deep drowsiness, stumbling, pinpoint pupils, drooling, vomiting, slowed breathing, low body temperature; severe cases: unresponsiveness, blue gums, collapse.
When to call the vet
Call your veterinarian or a pet poison hotline immediately — opioid overdoses can be treated in a clinic if caught early. Mention any combination ingredients, as acetaminophen and ibuprofen carry their own dangers for dogs.
Common questions
My dog ate my pain pills with codeine — will he be OK?
Not something to wait out — opioids can slow breathing dangerously, and combination products add acetaminophen or ibuprofen toxicity. Call your vet or a poison hotline right away.
Is codeine ever used in dogs?
Veterinarians occasionally prescribe opioid pain control, but only under supervision. Never share your prescription — doses, formulations, and combinations differ.
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).