Ivermectin works by disrupting the nervous system of the parasites, causing paralysis and death. It is effective against a wide range of parasites, including roundworms, hookworms, whipworms, and other intestinal parasites. It is also effective against mites, lice, and other external pa rasites. Ivermectin is available in oral, topical, and injectable forms. The oral form is the most commonly used and is available in tablet, liquid, and chewable forms. The topical form is a cream or lotion that is applied to the skin. The injectable form is used to treat severe cases of parasites, such as those found in livestock. Ivermectin is generally well tolerated, with few side effects. The most common side effects include nausea, vomiting, and abdominal pain. Other side effects may include headache, dizziness, and rash. Rarely, it can cause serious side effects such as seizures, confusion, and vision loss. Ivermectin is generally considered safe for use in pregnant and breastfeeding women. Howe