when should i start heartworm medication
You should start your puppy on a heartworm preventative medication as soon as he's 8 weeks old. Lots of vets give a free sample of Heartgard for pups at their first puppy check up, after that it's up to you.These medicines need to be given once a month (without fail), during mosquito season.ou should start your puppy on a heartworm preventative medication as soon as he's 8 weeks old. Lots of vets give a free sample of Heartgard for pups at their first puppy check up, after that it's up to you. These medicines need to be given once a month (without fail), during mosquito season.
All dogs should start on regular heartworm prevention medicine when they are puppies. Most heartworm prevention medicines are safe for puppies as young as 6-8 weeks old.f you give your dog his heartworm âpreventionâ on April 1, and he gets bitten by a mosquito on April 2, he can get infected with baby heartworms. If you give the next dose of prevention on May 1, that medicine will kill the baby heartworms.