Few known side effects of (Ivermectin) Tablet include: confusion skin rash nausea dizziness fast heartbeat feeling something is in your eye(s) chest pain muscle pain swelling face/arms/hands/feet diarrhea seizures swelling of hands/ankles/feet headache swelling or tenderness of your lymph nodes loss of consciousness itching neck or back pain This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects.