My dog is throwing up and lethargic after recent shots and Trifexis.

Question

My 8 yr old uneutered male Boston was given vaccinations May 2, 2018 (including parvo and distemper). May 4, 2018 he was given Trifexis. Now, yesterday at 11:00 am ALL OF A SUDDEN he began throwing up, two separate times within a few minutes. He became very lethargic....stood in one spot from 1:00 pm until 2:20 pm. I gave him tsp honey and he responded to that for awhile, then back to being lethargic again. This AM he seems still not quite himself until around 11:00...back to himself, ? Pet's info: Dog | Boston Terrier | Male | unneutered | 7 years and 8 months old | 30 lbs

Ana M, DVM · Accepted Answer

Thank you for submitting your question regarding Junior. It is unlikely that he is experiencing a reaction from the vaccinations or the Trifexis given the amount of time in between. Reactions to both are possible, but in my experience will happen the same day. If his symptoms recur, I would recommend that he sees his veterinarian, but I am happy that he is feeling better now.

My dog is throwing up and lethargic after recent shots and Trifexis.

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