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My dog has roundworm. What dewormer is safe for my other dogs, including my senior?

Updated On September 23rd, 2025

Pet's info: Dog | Mixed Breed Large (61lb +) | Male | neutered | 6 years and 2 months old | 90 lbs

one of my three dogs was diagnosed with roundworm. What type of de-wormer do I use? Common sense tells me, I need to de-worm the other two dogs, if so, the de-wormer needs to tolerated by an twelve year old. Thanks for your input.

1 Answer

Most Helpful Answer

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Answered By Dr. Leigh, DVM

Veterinarian

Published on March 3rd, 2017

Round worms are usually treated with pyrantel pamoate which can be used in dogs of all ages. Using a monthly heartworm prevention, like Heartgard, would protect your dogs from heartworms and intestinal parasites so you should talk to your vet about starting Heartgard every month.

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