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Heartworm treatment for dogs: Is it always successful and a full cure?

Updated On September 23rd, 2025

Pet's info: Dog | Mixed Breed Small (up to 22lb) | Male | neutered | 9 years and 6 months old | 11 lbs

What are the chances of the shot heart worm treatment being successful for dogs? Like does it 100% cure it or does it depend on how serious the worms are? I’m not sure

1 Answer

Most Helpful Answer

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Answered By David Elbeze, DVM, MRCVS

Veterinarian

Published on March 31st, 2018

In depends on how severe the infestation is, but with the new treatment protocol most dogs recover eventually, it may take a very long time to finish the treatment course if the dog is heavily infested and you need to be very strict with physical activity as any excess in activity may put his life in danger as long as he is not cleared of this disease.

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