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Question:

Buprenorphine - cat not eating or drinking

I'm really worried about my cat, Whiskers, and I could use some advice or reassurance from those who might have been in a similar situation. She was prescribed buprenorphine for pain relief after a minor surgery, but ever since we started the medication, she's completely lost her appetite. Whiskers hasn't eaten or drank anything in over 24 hours, and it's breaking my heart to see her like this. I know it could be a side effect of the medication, but I'm really concerned about dehydration and her overall health. She's usually such a lively, playful kitty, and seeing her so lethargic and uninterested is gut-wrenching. Has anyone else experienced this with their pet on buprenorphine? How long did it take for things to get back to normal, and is there anything I can do to encourage her to eat or drink in the meantime? Any advice or shared experiences would be so appreciated. Thank you!

Answer:

Hello there! It sounds like your kitty is having a tough time, and I understand how concerning this must be for you. Buprenorphine is a pain medication that's often used for cats, typically after surgery or for managing chronic pain. While it's effective, it can sometimes cause side effects, including reduced appetite or drinking.



It's possible that your cat is feeling a bit drowsy or nauseous from the medication, which could explain the decreased interest in food and water. Fortunately, there are some gentle ways to encourage your cat to eat and drink. Try offering a spoonful of tuna water or a low-sodium broth to pique their interest. Warming up their regular food slightly can also help, as the stronger aroma might be more enticing.



However, keep an eye on any signs that could indicate dehydration or a more serious issue, such as persistent vomiting, lethargy, or not urinating. If your cat hasn't eaten or had a good drink in 24 hours, or if you notice these concerning symptoms, it's important to take action.



To ensure your feline friend gets the care they need, please consider booking a video consult with a vet on Dial A Vet. We can provide more personalized advice and support for you and your kitty.

Answered by

Louise - Senior Veterinary Nurse, Dial A Vet

June 22, 2025

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The "Ask a Vet" forum on Dial A Vet offers general information and helpful tips on pet health, but it's not a substitute for professional veterinary care. The advice here doesn't create a veterinarian-client-patient relationship, and our vets can't diagnose or treat your pet remotely. For emergencies or specific medical concerns, always contact your local veterinarian immediately. Your pet's health is unique, and decisions should only be made after consulting with a qualified professional. By using this forum, you acknowledge these limitations and agree to seek in-person veterinary advice for all your pet's health needs. View our content guidelines.
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