Can prevention be used to clear a heartworm infection? - The Drake Center
No, it differs. Prevention entails preventing the disease. It's not going to treat the cat if they already have heartworms. Like I said before, there is no treatment for heartworm in cats. There are treatments for the side effects that they cause, but there's no treatment to kill the actual worm.
Contributed by Heather Kovacevich DVM
from The Drake Center
Can prevention be used to clear a heartworm infection? - Loch Haven Veterinary Hospital
Unfortunately, prevention cannot be used to clear a heartworm infection in cats.
Contributed by Dr. Amanda German
from Loch Haven Veterinary Hospital