Mebendazole is a widely used antiparasitic medication prescribed to treat worm infections in humans. It belongs to a class of drugs known as anthelmintics, which work by preventing worms from absorbing glucose. Without glucose, the worms lose energy, become immobilized, and eventually die. The body then naturally eliminates them through bowel movements. Mebendazole 100mg is commonly used to treat intestinal worm infections such as pinworm, roundworm, whipworm, and hookworm. It is effective against both single and mixed worm infestations. The tablet is usually taken as a single dose for mild infections like pinworms, while other infections may require treatment for three days or longer, depending on the doctor’s advice. The medication is generally well tolerated. Mild side effects may include stomach pain, nausea, vomiting, diarrhea, or headache. Serious side effects are rare but should be reported to a healthcare professional immediately. Pregnant women, especially during the first trimester, should consult a doctor before taking this medicine. Maintaining proper hygiene, such as washing hands regularly and keeping nails trimmed, helps prevent reinfection. Mebendazole plays an important role in improving public health by effectively controlling parasitic worm infections worldwide.