Which parasitic infections does ivermectin treat?

Ivermectin effectively treats onchocerciasis (river blindness), strongyloidiasis (threadworm), lymphatic filariasis, scabies, head lice, and several other parasitic worm and mite infections.

How effective is ivermectin against parasites?

Ivermectin is highly effective, often clearing infections with a single dose. It has been a cornerstone of global parasite eradication programs and is credited with near-elimination of river blindness in several countries.

How does ivermectin kill parasites?

Ivermectin binds to glutamate-gated chloride channels in parasite nerve and muscle cells, causing paralysis and death. This mechanism does not affect human cells in the same way, making it selectively toxic to parasites.

What is the typical dosage for parasitic infections?

The standard dose is 150-200 mcg per kilogram of body weight taken orally on an empty stomach. Some infections require a single dose while others, like scabies, may require a second dose 7-14 days later.

Can ivermectin prevent parasitic infections?

Ivermectin is primarily used as a treatment rather than a preventative. However, in mass drug administration programs it is given to entire populations in endemic areas to interrupt transmission and prevent spread.

Are there parasites that are resistant to ivermectin?

Resistance to ivermectin has been documented in some livestock parasites, and there is emerging concern about resistance in human parasites in areas of long-term mass drug administration. However, resistance is not yet a widespread clinical problem in humans.

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Ivermectin for Parasites: What You Need to Know

Posted on March 19, 2026April 9, 2026 by llar9

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