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My dog is choking and snorting. Can I give her guaifenesin for phlegm?

Updated On September 23rd, 2025

My 6-7 lb Maltese is on 16.2 mg of phenobarbital 2x/day & 1cc of levetiracetam 3x/day for seizures, .8cc of clavamox 2x/day for a UTI, & eye drops 2x/day. Chest X-rays this week revealed a large spot/mass in/on her lung, & we will see an oncologist Mon morning for tests to figure out what the spot is. She has been choking, reverse sneezing, snorting, etc. It sounds like she’s choking on phlegm. I was wondering if I could give her guefanesin to try to loosen/then the mucus, and, if so, how much.

1 Answer

Most Helpful Answer

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Answered By Jenna Beyer, DVM, MBA, cVMA

Veterinarian, Certified Veterinary Acupuncturist

Published on January 6th, 2018

Considering the amount of medications and her current health issues, I would strongly urge you to call her primary veterinarian to ask this question. While it is quite possible that she has phlegm, I would also be concerned about issues related to the possible mass or other disease process going on in her respiratory system. Since guafenasin is not a commonly used medication in healthy animals, I am reluctant to recommend its use in your dog's case since I am not aware of all of her medical history.

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