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Question:

My vet gave my senior dog the wrong injection

I’m really upset and need some advice. I took my 12-year-old golden retriever, Max, to the vet yesterday for his regular arthritis injection, which he really needs to keep moving comfortably at his age. When we got home, I noticed he was acting really weird—super lethargic and not interested in his food, which is so unlike him because he usually acts like every meal is his last. I called the vet, and it turns out they accidentally gave him the wrong injection, something meant as a sedative for another dog. I’m furious and worried sick. They told me it should wear off, but it’s been over 24 hours, and he’s still not himself. Has anyone gone through something like this? What should I be watching for, and is there anything I can do to help him in the meantime? Any advice would mean the world to me right now.

Answer:

I'm really sorry to hear about the mix-up with your senior dog’s injection. It’s understandable to feel concerned in such situations, but I'm here to help you navigate this.



First, let's talk about potential causes and effects. Mistakes can happen with any procedure, and it’s important to determine what your dog was actually given. If it was a routine vaccine or medication typically not intended for your pet, watch for any immediate reactions such as swelling, redness at the injection site, or unusual behavior like lethargy or agitation.



At home, keep a close eye on your dog. Monitor for vomiting, diarrhea, or difficulty breathing, which can signal a more serious reaction. You can gently palpate the injection area and apply a cool compress if there's mild swelling.



If any severe symptoms appear—such as trouble breathing, collapse, or a rapid heartbeat—this needs urgent veterinary attention!



For peace of mind, I recommend contacting your vet to clarify what was administered. Keeping an updated record of your dog’s health history can also be helpful in such situations.



I suggest booking a video consult with Dial A Vet. We can discuss your concerns with one of our veterinarians to guide you on the best steps forward and ensure your beloved pet is safe and well.

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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