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My dog ate a 325mg Dayquil gel capsule. Is it toxic for his size?

Updated On September 23rd, 2025

Pet's info: Dog | Mixed Breed | Male | neutered | 1 year and 4 months old | 23 lbs

My dog is a spaniel mix that is a year and a half, he weighs 23 pounds. He chewed on a 325 mg Dayquil gel capsule. Is this amount toxic to his size?

1 Answer

Most Helpful Answer

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Answered By Ann Dion, DVM

Veterinarian

Published on November 20th, 2017

Hello and welcome to Petco Pet Education Center, formerly Petcoach. For that amount he could have issues with both the Acetominophen (30mg/kg) which could cause KCS, which is a problem with the eyes. So for this you will want to get a product like 'Refresh', or some other eye lubricant with no medication and lube his eyes twice a day for the next couple weeks. The biggest concern is the decongestant. If the box says the ingredient is phenylephrine 5mg then you shouldn't be concerned, however if the ingredient is pseudoephedrine then you will want to have Gideon into the vet right away. Otherwise, monitor for signs of anxiousness, hyperactivity, inability to settle, vomiting, diarrhea, weakness, or increased drinking and peeing. If these occur then go to your vet. If your dog has any clinical signs, or any other underlying disease conditions (which could affect how these drugs affect him, such as liver or kidney disease), then I would bring him right away to the vet. To be extra precautious you could take him to a vet to get him to vomit (remove any remaining toxin in his stomach) however this isn't as effective for the liquid capsules as they absorb quickly, and activated charcoal which will bind any other toxin left in his stomach. Best of luck with Gideon.

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