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Are multiple vaccines safe for my small dog? What are the risks?

Updated On September 23rd, 2025

Hello. My two Dachshunds who are brother and sister are due to have their 1 year health check soon at the vets. The vets have said that my dogs will be given kennel cough, DHP, lepto 2. My concern is this is a lot to give a small dog and one who is only just over 1 years old. Should I be concerned? Are side effects possible? Are all of these absolutely necessary? Should I ask for there to be a gap of a few weeks for these to be given, if all necessary. Thank you.

1 Answer

Most Helpful Answer

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Answered By Dr. Elizabeth

Veterinarian

Published on February 20th, 2019

For small dogs, I generally do recommend to separate vaccines by a few weeks. This will decrease the chances of a vaccine reaction. You can also give the pups diphenhydramine prior to the vaccines to further decrease reaction rates. Definitely discuss these options with your veterinarian. Possible side effects of vaccines are vomiting, diarrhea, facial swelling, lethargy and collapse. If your pups exhibit any of these afterwards, be sure to have them seen immediately. The vast majority of pets are fine with vaccines however and reactions are rare. Most vets vaccinate based up risks associated with life style and the diseases found in your area. I recommend to have a conversation about risk factors for your pups but I suspect they are present if your vet is recommending these vaccines. Clear communication however is always best. I hope this is helpful and please feel free to post any additional questions.

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