Mebendazole is an effective antiparasitic medication primarily used to treat a range of intestinal worm infections. It works by preventing the worms from absorbing glucose, leading to their eventual death. Commonly prescribed for both adults and children, mebendazole is especially useful in managing parasitic infections caused by pinworms, roundworms, whipworms, and hookworms. The most frequent use of mebendazole is for pinworm (Enterobius vermicularis) infections, which are highly contagious and often affect school-aged children. It is also prescribed for treating ascariasis (roundworm infection), trichuriasis (whipworm infection), and hookworm infections, especially in areas with poor sanitation. Mebendazole is typically taken orally, either as a chewable tablet or in liquid form. A single dose may be sufficient for pinworm infections, while longer treatments (usually over three days) are required for more severe or mixed worm infestations. In some cases, a second dose is recommended after a few weeks to prevent reinfection. This medication is widely favored for its broad-spectrum action, minimal side effects, and ease of use. Side effects, when they occur, are generally mild and may include stomach pain, diarrhea, or nausea. Due to its ability to treat multiple types of helminth infections effectively, Mebendazole OTC is listed as an essential medicine by the World Health Organization (WHO). It plays a vital role in global public health efforts to control parasitic worm infections, particularly in children and vulnerable populations. Always consult a healthcare professional before taking mebendazole to ensure the correct dosage and suitability for your condition.