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My 8-week puppy ate wrong medication, expired Deramaxx. What to do?

Updated On September 23rd, 2025

Pet's info: Dog | Mixed Breed | Female | unspayed | 2 months and 4 days old | 2.5 lbs

Hi. I have a 2.5 lbs pomeranian mix 8 week old puppy. I was supposed to give her half a tape worm tablet but instead gave her my 23 lbs bichon's old Deramaxx instead. It was 1/2 tablet of 25 mg. Is this going to cause a problem? The deramaxx was from 12/2016.

1 Answer

Most Helpful Answer

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Answered By Andrea M. Brodie, DVM

Veterinarian

Published on April 21st, 2018

If this happend within the past 2 hours you should take your puppy to a Pet ER where they can make your puppy regurgitate its stomach contents. This is a significant overdose and can hurt your puppy.| At this age puppies do not have tape worm yet, so there is no need to give a tape worm wormer. It is more important to give a wormer for round worms. Take Lucy to the Pet ER now so she can get rid of the Derramax overdose before her liver and/kidneys are damaged.

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