Heartworm

Everything you need to know about heartworm medications for pets

Prevention

The Best Heartworm Medications for Cats

PetMD Editorial

The Best Heartworm Medications for Dogs

PetMD Editorial

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4 Things to Know About Heartworm Tests for Dogs

Lindsay Starkey, DVM

Do Indoor Cats Need Heartworm Prevention?

W. Mark Cousins, DVM, DABVP

How Do Dogs Get Heartworm Disease?

Jenni Rizzo, DVM, President of American Heartworm Society

My Dog Has Been Diagnosed with Heartworm Disease. Now What?

Andy Moorhead DVM, American Heartworm Society

All Heartworm Articles

Heartworm Disease in Dogs: Symptoms, Causes and Treatment

Michael Kearley, DVM

The 7 Best Heartworm Preventative Medications and Products for Dogs in 2024, Recommended by Vets

PetMD Vet Advisory Panel

Treating Heartworms in Dogs

Jennifer Coates, DVM

Heartworm Disease in Cats

Lauren Jones, VMD

Why You Need to Stay Current on Flea, Tick, and Heartworm Protection

Katy Nelson, DVM

10 Myths About Heartworms

PetMD Editorial

How To Choose the Best All-in-One Heartworm and Flea Pill for Dogs

Natalie Stilwell, DVM, MS, PhD

How To Prevent Heartworm Disease in Puppies

Jamie Lovejoy, DVM