Ivermectin is primarily used in dogs for the prevention and treatment of heartworm disease. The parasitic worm Dirofilaria immitis, living in the heart and pulmonary arteries of dogs, causes this ...

Q: "I bought pour-on ivermectin by mistake. Am I able to give this orally to my dog? He is a German Shorthaired Pointer and weighs about 60 lbs. Thanks for your help." —Bill A: No, please do not give ...

DEAR DR. ROACH: In several of your columns, either you or a reader has brought up the subject of ivermectin as a treatment for infections or cancer. Is this the same ivermectin that is in my dog’s ...