How to Prevent Heartworm Naturally

This is the second post in a two-part series focused on keeping your pet’s heart safe. This post focuses on how to prevent heartworm naturally. Read the first post to learn the misconceptions about heartworm and understand what heartworm really is.

The American Heartworm Society (AHS) recommends year-round chemical preventives for every dog over the age of eight weeks; however, research shows the AHS is backed by eight pharmaceutical companies and has a vested interest in promoting and selling heartworm drugs, despite the drugs’ harmful side effects. If conventional medicines aren’t safe, how can we protect our pets while preventing heartworm?

How to Prevent Heartworm Naturally

Conventional medicine recommends preventing heartworm by feeding your pet once-a-month tablets. However, evidence is beginning to show that these pharmaceutical drugs aren’t necessarily safe for your pet.

Ivermectin, the active ingredient in some heartworm tablets, can cause liver problems, vomiting, diarrhea, depression, seizures, paralysis, auto-immune diseases, pneumonia, aggression, and sudden death, among other side effects. Collies, Australian shepherds, shelties, border collies, and old English sheepdogs are particularly susceptible to the toxicity of ivermectin.

Herbs, such as neem bark powder, are a safe, more natural way to help prevent heartworm. Because herbs also promote overall wellness, including digestive health and balance, clean blood, and a strong immune system, they can make pets less susceptible to heartworm—preventing your furry friends from getting infected in the first place!

Because heartworm is carried by mosquitoes, we can also protect our pets by preventing mosquito bites. Clear any standing water (mosquitoes breed in standing water) near your pet’s play areas and use a natural flea, tick & mosquito repellent to keep mosquitoes away from your pet.


  1. Melissa February 18, 2014
    • Amand December 31, 2016
  2. Pat March 14, 2014
    • Wondercide March 14, 2014
  3. Patricia March 24, 2014
    • Wondercide March 27, 2014
  4. June March 26, 2014
    • Wondercide March 27, 2014
  5. Heather November 13, 2016
    • Wondercide November 14, 2016

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