Ivermectin: What It Is, How It's Used, and What You Need to Know

When you hear ivermectin, a broad-spectrum antiparasitic medication originally developed for animals and later approved for human use against certain parasitic infections. Also known as Stromectol, it has been a lifeline in global health programs for diseases like river blindness and strongyloidiasis. It kills parasites by paralyzing their nervous system—but it’s not a magic bullet for every infection, and it’s not safe for everyone.

People often confuse ivermectin, a prescription antiparasitic. Also known as Stromectol, it has been a lifeline in global health programs for diseases like river blindness and strongyloidiasis. with over-the-counter animal dewormers. That’s dangerous. The doses used in livestock are far stronger than what humans take, and using them can lead to serious side effects like dizziness, nausea, low blood pressure, or even seizures. Even when used correctly in humans, it can interact with other drugs—especially those that affect the liver or central nervous system. If you’re on blood thinners, seizure meds, or certain antidepressants, talk to your doctor before taking it.

It’s also not a treatment for viral infections like COVID-19, despite what you might have heard. Major health agencies, including the FDA and WHO, have repeatedly warned against using it for this purpose. The studies that suggested benefit were flawed or misinterpreted. Ivermectin works on parasites, not viruses. Using it for the wrong reason doesn’t help—and could hurt.

But when used right, it’s one of the most effective tools we have against certain parasites. It’s used in mass drug administration programs in parts of Africa and Latin America to stop the spread of river blindness. Dermatologists prescribe it for rosacea and scabies. In some cases, it’s even used off-label for stubborn lice or intestinal worms when other treatments fail. The key is knowing when it’s appropriate—and when it’s not.

What you’ll find in the posts below are real, practical guides on how medications like ivermectin fit into broader health decisions. You’ll learn how to check for dangerous interactions, understand why some drugs work for some people and not others, and spot the difference between medical facts and misinformation. Whether you’re managing a chronic condition, worried about side effects, or just trying to make sense of your prescriptions, these articles give you the clear, no-fluff facts you need.