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You are here: myPetSmart.com > Community > Message Boards > Cats > Care > Heartworm Medicine
Joined: 12/31/1969
User offline. Last seen 42 years 37 weeks ago.

Has anyone ever heard of heartworm medicine given yearly? My boyfriend's ex wife says that his dog was given some kind of heartworm medicine that only has to be given once a year but I have never heard of such a thing. I have a dog and give her medicine once a month. I have looked online but didn't really see anything about yearly medicine. Thanks and Happy Holidays!