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Vomiting after allergy injection

Species: Dog
Breed: mutt
Age: 5-8 years
My sister took my dog to the vet yesterday where she recieved a shot to stop itching due to her allergy of fleas and she threw up yesterday some and today a lot more. what might she have?




Online vet, Dr. Marie

Dr. Marie replied:

Hi and thanks for your question.

This is a tough question for me to answer without being able to see Penny. There really shouldn't be a connection between a shot for allergies and vomiting. Most likely she had a steroid injection which really shouldn't cause vomiting as well.

Was she put on any antibiotics? Some antibiotics can cause stomach upset.

Did she have extra treats while she was at the vet's office? New, or lots of treats could cause vomiting.

Is she up to date on her vaccines? She could possibly have picked up a virus at the office. However, it would usually take more than 24 hours to start showing symptoms so this is unlikely.

It is a good idea to have your sister call her vet and ask if the injection given could have contributed to the vomiting. If the vomiting has not resolved after 24 hours then you may need to take her back in.

I hope she is oK!

Dr. Marie.

---This question was asked in our Ask A Vet For Free section.---


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Disclaimer: Although Dr. Marie is a qualified veterinarian, the information found on this site is not meant to replace the advice of your own veterinarian. AskAVetQuestion.com and Dr. Marie do not accept any responsibility for any loss, damage, injury, death, or disease which may arise from reliance on information contained on this site. Do not use information found on this site for diagnosing or treating your pet. Anything you read here is for information only.

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Dr. MarieDr. Marie is a veterinarian who practices in a busy animal hospital in Ottawa, Ontario. She created Ask A Vet Question as a resource for good, accurate veterinary advice online. Dr. Marie treats dogs, cats, hamsters, guinea pigs, and rats. She has been a vet since 1999.

Is an online vet visit just as good as a trip to your veterinarian? No! But, many times, asking an online veterinarian a question can help save you money. While Dr. Marie can't officially diagnose your pet or prescribe medications, she can often advise you on whether a vet visit is necessary. You can also ask Dr. Marie for a second opinion on your pet's condition.