Veterinary questions? Ask a Vet for Answers ASAP
Hi, Welcome to Just Answer. I'm Chris, a small animal Vet based in the UK. I am reviewing your question and will get back to you as soon as possible
Sorry to hear this with Rollo. Although one grape is not likely to be life threatening, it could still be harmful. I would advise contacting your vet ASAP, then can give him an injection to induce emesis quickly and safely. Hydrogen peroxide can work, but it certainly has some risks so I generally don't advise its use in these circumstances.
I hope that answers your question? Please let me know how you get on.
All vets will provide a 24hr out of hours service. If you call their regular number they will put you through to their on call vet or out of hours service.