Albendazole is a widely used antiparasitic medication prescribed for the treatment of various worm infections in humans. It belongs to a class of drugs known as anthelmintics and works by stopping the parasites from absorbing glucose, which leads to their loss of energy and eventual death.Albendazole 400 mg is commonly used to treat intestinal worms such as roundworm, hookworm, whipworm, and threadworm. It is also effective against more serious parasitic infections like hydatid disease and neurocysticercosis, an infection of the brain caused by pork tapeworm larvae. The tablet is usually taken orally, with or without food depending on the type of infection being treated. For some conditions, it is recommended to take albendazole with a fatty meal to improve absorption. The dosage and duration of treatment vary based on the patient’s age, weight, and the specific parasite involved, so it should always be taken as prescribed by a doctor. Albendazole is generally well tolerated, but some people may experience side effects such as nausea, abdominal pain, headache, dizziness, or temporary hair loss during long-term use. In rare cases, it can affect liver function or blood counts, so medical supervision is important, especially for prolonged therapy. Pregnant women should avoid albendazole unless clearly advised by a healthcare professional.