Covimectin 12 mg Tablet Ivermectin Certain parasitic roundworm infections are treated with this medicine. Curing parasitic illnesses can help you live a better life. Curing roundworm infections can minimize the chance of acquiring a serious or life-threatening illness in patients with weaker defence (immune) systems. Anthelmintics are a class of medications that includes ivermectin. Parasites are paralyzed and killed by it.