Natulan is a chemotherapy medication used in cancer treatment, particularly for malignant brain tumors such as gliomas. Its active substance, procarbazine, belongs to the class of alkylating agents. Natulan works by disrupting the division and growth of cancer cells, thereby helping to control tumor progression. It is administered orally in capsule form, and dosage is determined by the physician based on the type of cancer and the patient’s overall condition. It is crucial to follow medical advice regarding the correct dosage, administration frequency, and duration of treatment.