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Why is my puppy sleepy and not eating after vaccine and deworming?

Updated On September 23rd, 2025

Pet's info: Dog | Shih Tzu | Female | 2 months and 16 days old | 2.25 lbs

is it natural? after giving her 5in1 vaccine and 4th deworm she gets sleepy and lost her appetite. And starting not to be playful?

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1 Answer

Most Helpful Answer

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Answered By Dr. Massimo Orioles, DVM, Cert AVP, MRCVS

Veterinarian

Published on February 25th, 2018

That could be completely normal especially after vaccination. I would recommend to ask your vet not to give worming tablet and vaccine at the same time and or change vaccination brand (same kind of vaccine, just different company). if the signs are transient and last less than 24 hours, I would not be worried about it at all. Please do not hesitate to contact us again on the forum or by requesting a consultation if you have any more questions or to discuss it any further.

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