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My 4-week-old puppy vomited a worm. What dewormer is safe?

Updated On September 23rd, 2025

Pet's info: Dog | Mixed Breed | Male | unneutered | 28 days old | 6 lbs

My 4 week old dog just coughed up a little milky vomit-i bottle feed him-and a worm. With him being so young what deworming medicine can I give him our does he need a vet being so young? How much did it cost?He is around several small children who love cuddles and kisses so I need to be cautious until treatment is complete? I attached a picture....I uncoiled it with a sewing pin.

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1 Answer

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Answered By Dr. Davis

Veterinarian

Published on October 18th, 2017

This is a roundworm. He is old enough to give pyrantel a safe dewormer that is for roundworms and hook worms. That dewormer is inexpensive. You may be able to purchase it at your pet or feed store depending on where you live. Otherwise your veterinarian can deworm him. Proton should be dewormed every two weeks until a stool sample comes back negative. When he is old enough to start heartworm medication that also will prevent another parasite infection. Please keep the children away from his poop and wash their hands and yours after handling Proton. People can get roundworms but it is not common with normal hygiene. Thanks for using Petco Pet Education Center, formerly Petcoach to help you care for Proton.

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