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Make Heartworm Preventive Reminders a Priority

by Charles Thomas (Tom) Nelson, DVMAHS-1606-Jun-16-Summer-Bulletin

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Q. How significant a problem is heartworm compliance?

A. In a 2014 American Heartworm Society survey, veterinarians were asked if the incidence of heartworm disease in their area had increased over the past three years, decreased or stayed the same.

  • Among the 21% of veterinarians who perceived a drop in incidence, 74% attributed the drop to more pet owners administering preventives, while 61% cited more preventives being administered year-round and on time.
  • Meanwhile, among the 19% who perceived an increase in heartworm incidence, 61% attributed the rise to poor compliance— either not administering preventives or failing to give doses on time.

Q. Pet owners today have many medication choices. Why should compliance even be a problem?

A. I put the reasons in two categories:

  • Understanding the need for prevention. Owners need to be convinced that heartworm presents a risk to their pet. In regions where heartworm disease historically has not been common or is considered to be seasonal, clients may be resistant to the idea of year-round prevention.
  • Remembering to give preventives on time, every time. Owners may have the best of intentions but still forget to give doses or give them late. I’m frank with my clients and tell them my own story. Back in the ‘90s, when monthly heartworm preventives replaced daily medications, my own dog turned up heartworm-positive. I subsequently discovered that I had only given nine of the 12 pills for the year. I simply hadn’t acquired the right habit.

AHS 1606 Jun 16 Summer Bulletin reminderQ. How can veterinarians improve heartworm compliance?

A. These are my top two suggestions:

  • Heartworm education. Take the time with every owner to make sure they understand the risk heartworm presents to their pet and the value prevention provides.
  • Heartworm reminders. When I speak at meetings, I often ask how many veterinarians send reminders for heartworm testing.

Roughly 80% raise their hands. But when I ask how many send reminders about heartworm preventives, only 20 – 25% do so. Most owners don’t skip doses to save money—like me, they simply forget.

By finding a timely way to remind owners to protect their pet from heartworms and other parasites, we can equip them to provide the care they want to give.

The right reminder system can be anything from a year’s supply of stickers for the family calendar to a timely text message or email. The important thing is to talk to clients and pick the right reminder method for them.

 For more information on this and other heartworm topics, visit


The days are getting shorter, the nights are cooler, leaves are starting to turn, and football season is here. But that doesn’t mean your clients can forget about protecting their pets from heartworms.

To keep this message front and center with your clients, we’re sharing a set of new posters you can print OR post on your Facebook or Instagram page.

  • To save or print a poster, just click on the image below, then click on the “download” button and save the PDF file.
  • To save a poster for use on your social pages, simply open the downloaded poster, then right click on the file and follow the menu instructions to save the file as a JPEG image.

For more client tools, be sure to visit the Resource Center. And if you don’t already, make sure you’re sharing our Facebook and Instagram posts!