Antiworm medicine like Nizonide 500mg (containing Nitazoxanide) can be prescribed for children, but its use should always follow a doctor's guidance. It is effective against certain parasitic infections such as giardiasis or cryptosporidiosis. However, the dosage and suitability depend on the child's age, weight, and medical condition. Generally, Nizonide 500mg is formulated for adults, so pediatric formulations or adjusted doses are used for children. Overdose or incorrect use can lead to side effects like nausea or abdominal discomfort. Always consult a pediatrician before administering antiworm medication to ensure safety and effectiveness for your child. Avoid self-medication.