The people that use it seem to really like it. However, there is a growing number of vets who are finding it ineffective against heartworms. I personally would never trust it to protect my girl from heartworms, but maybe the vets still using it have not had any issues (or maybe they just haven't looked into it). They all can be ineffective at times. This one seems to get the most concern/complaints though.
__________________ Crystal  , Ellie May (RIP)  , Rylee Finnegan  , and Gracie Boo🐶 |