Mebendazole is an antiparasitic medication widely used to treat intestinal worm infections in humans. It works by inhibiting the ability of parasitic worms to absorb glucose, which ultimately leads to their death. The medication is commonly prescribed for infections such as pinworm (Enterobius vermicularis), roundworm, whipworm, and hookworm. In many cases, a single dose is effective, particularly for pinworm infections, though repeating the dose after two weeks is often recommended to prevent reinfection. For other worm infections Mebendazole 100 mg is usually taken twice daily for three days, depending on the type and severity of the infestation. The drug is generally well tolerated, with mild side effects such as abdominal pain, diarrhea, or nausea occurring in some individuals. Serious side effects are rare but may include allergic reactions or liver-related issues. Pregnant individuals and those with known liver disease should consult a healthcare professional before using mebendazole. Practicing good hygiene—such as handwashing, cleaning household surfaces, and washing bedding—helps reduce reinfection, especially in households where multiple people may be exposed. Because mebendazole targets only intestinal worms, it does not treat other types of parasites. Always use mebendazole under medical guidance to ensure proper dosing and safe, effective treatment.