What Are the Common Side Effects of Niclosamide? Niclosamide is generally considered a safe and well-tolerated medicine when used as prescribed to treat tapeworm infections. Most people experience mild and temporary side effects, if any. The most common side effects include nausea, stomach pain, vomiting, diarrhea, and loss of appetite. These symptoms usually occur because the medicine works directly in the intestines and often improve on their own within a short time. Some people may also notice headache, dizziness, or a feeling of weakness, especially during the first day of treatment. In rare cases, mild skin reactions such as itching or rash may occur. Serious side effects are uncommon, but allergic reactions like severe rash, swelling, or difficulty breathing require immediate medical attention. Visit : https://www.dosepharmacy.com/niclosan-500mg-tablet