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Updated on September 23rd, 2025
Pet's info: Cat | Mixed Breed | Male | neutered | 4 years and 6 months old | 25 lbs
My cat had .1 ml of NyQuil given by a friend who was watching him to make him sleep should I be worried?
2 Answers

Answered By Catherine Stecyk
Veterinarian
Published on July 17th, 2018
Answered By Laura E. McRae
Veterinary Technician
Published on March 3rd, 2015
NyQuil should NOT be given to cats because one of its active ingredients is acetominophen - a drug that can be toxic to cats. A single adult dose of Nyquil® syrup contains 1000 milligrams of acetaminophen, the equivalent of more than three Tylenol tablets. Considering that the the ingestion of one 325-mg Tylenol tablet by a cat results in severe toxicosis, and two tablets ingested within 24 hours is fatal, 1000-mg is an extremely toxic dose of acetominophen.
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