Hi stranger! Signing up for MypetMD is easy, free and puts the most relevant content at your fingertips.

Get Instant Access To

  • 24/7 alerts for pet-related recalls

  • Your own library of articles, blogs, and favorite pet names

  • Tools designed to keep your pets happy and healthy



or Connect with Facebook

By joining petMD, you agree to the Privacy Policy.


Q. Is there something I can buy over the counter at Walmart for heartworm? I don't have the money for a prescription

Answered By
JESSICA L DESROSIERS

A. Prior to starting any heartworm medication, your dog must have a negative heartworm test. This can be done at a local clinic in your area. Heartworm medications are usually prescription only and require a prescription from your local veterinarian. However if you are looking to find these medications at a lower cost than your vet clinic offers, many websites such as 1800PetMeds and DrsFosterSmith offer these products at a reduced rate. Since these products are prescription-only, you will need to have your vet fax over the prescription before they can mail you the medication. However, many vets are very happy to do this in order to provide medication for you at a lower cost!


DISCLAIMER: The answers in Ask petMD are meant to provide entertainment and education. They should not take the place of a vet visit. Please see our Terms and Conditions.

CAN'T FIND WHAT YOU'RE LOOKING FOR?

Ask an expert about your unique situation now FOR FREE!

IMPORTANT: The opinions expressed in Ask petMD content area are solely those of the User, who may or may not have medical or scientific training. Our Ask petMD experts include veterinarians, vet techs, veterinary students, pet trainers, pet behaviorists and pet nutritionists. These opinions do not represent the opinions of petMD. User-generated content areas are not reviewed by a petMD veterinarian or any member of the petMD editorial staff for accuracy, balance, objectivity, timeliness, or any other reason except for compliance with our Terms and Conditions. petMD does not endorse any specific product, service, or treatment. Do not consider petMD user-generated content as medical advice. Never delay or disregard seeking professional medical advice from your veterinarian or other qualified healthcare provider because of something you have read on petMD.