Heartworm

Kelly Sulik, DVM

Heartworm prevention has become a standard of preventive care for pets in the United States. However, more than 1 million pets in the US are believed to be heartworm positive, and that number is growing....

Jennifer Coates, DVM

Heartworms (Dirofilaria immitis) are parasitic roundworms that can infect both dogs and cats. If your pets are not on pet prescription heartworm prevention program, they may contract the parasite through...

Katy Nelson, DVM

All over the country, temps are on the rise, trees are starting to bud, and flowers are starting to bloom. While we may be practicing social distancing, bugs are still out there causing problems for our...

Stephanie Howe, DVM

PetMD’s medications content was written and reviewed by veterinary professionals to answer your most common questions about how medications function, their side effects, and what species they are prescribed...

PetMD Editorial

Reviewed and updated for accuracy on June 24, 2019 by Dr. Hanie Elfenbein, DVM, PhD A few years ago, it was possible to say that your dog wasn’t at risk for heartworm disease because of where you live;...

Katy Nelson, DVM

By Dr. Katy Nelson   Heartworm disease is a serious and potentially fatal condition of dogs, cats, and ferrets, caused by infestation of a parasite known as Dirofilaria immitus. Heartworms are transmitted...