Before taking stromectol, tell your doctor or pharmacist if you are allergic to it; or if you have any other allergies. Tell your doctor your medical history, especially of: immune system problems (e.g., HIV), breathing problems (asthma), recent foreign travel (Loa-loa endemic areas). This drug may make you dizzy or drowsy; use caution engaging in activities requiring alertness such as driving or using machinery. Limit alcoholic beverages. To minimize dizziness and lightheadedness, get up slowly when rising from a seated or lying position. This medication should be used only when clearly needed during pregnancy. Discuss the risks and benefits with your doctor. This medication passes into breast milk. Consult your doctor before breast-feeding.

Nausea, bloating, diarrhea, headache, lightheadedness, or muscle aches may occur. If any of these effects persist or worsen, contact your doctor or pharmacist promptly. Tell your doctor immediately if any of these unlikely but serious side effects occur: dizziness upon standing, fast heartbeat, chest pain, change in the appearance of the eye, eye swelling/redness, fever, joint pain, swollen or tender glands (lymph nodes), swelling in the arms/hands/feet. A very serious allergic reaction to this drug is unlikely, but seek immediate medical attention if it occurs. Symptoms of a serious allergic reaction may include: rash, itching, swelling, severe dizziness, trouble breathing.. If you notice other effects not listed above, contact your doctor or pharmacist.

Do not share this medication with others. Laboratory and/or medical tests (e.g., stool examinations) may be performed to monitor your progress and for side effects. Keep all medical appointments.