Ivermectin (Stromectol) is a medication used for infections caused by certain parasitic worms found in rural tropical areas. Depending on the type of worm being treated, serious side effects can occur. It hasn’t been shown to work well for other types of infections.
How ivermectin (Stromectol) works
Ivermectin (Stromectol) kills certain parasitic worms by causing damage to their nerves and muscles. This paralyzes them and causes them to die.
What is ivermectin (Stromectol) used for?
- Strongyloidiasis (stomach worms caused by Strongyloides stercoralis)
- Onchocerciasis (“river blindness,” a rare eye infection caused by Onchocerca volvulus)
Typical dosing for ivermectin (Stromectol)
Your dose of ivermectin (Stromectol) depends on your weight and the parasitic worm you are being treated for. Take all tablets prescribed to you by mouth on an empty stomach all at the same time.
What are the side effects of ivermectin (Stromectol)?
With any medication, there are risks and benefits. Even if the medication is working, you may experience some unwanted side effects.
Contact your doctor immediately if you experience any of the following:
- Mazzotti reaction (severe allergic reaction)
- Brain damage
The following side effects may get better over time as your body gets used to the medication. Let your doctor know immediately if you continue to experience these symptoms or if they worsen over time.
Common side effects
Side effects are not common when ivermectin (Stromectol) is being used for stomach worms. All side effects listed are for river blindness only.
- Itching (28%)
- Hives (23%)
- Fever (23%)
- Groin lymph node tenderness (14%)
- Swollen groin lymph node (13%)
- Swollen armpit lymph nodes (11%)
- Joint pain (9%)
Other side effects
For stomach worms:
For river blindness:
- Armpit lymph node tenderness
- Neck lymph node pain and swelling
- Other lymph node pain and swelling
- Eyelid swelling
- Unusual feeling in or around the eyes