Gestoserv 200mg Tablet contains natural micronized progesterone, a bioidentical hormone essential for regulating the menstrual cycle and maintaining pregnancy. Progesterone plays a critical role in preparing the endometrium for implantation of a fertilized ovum and supports early pregnancy by maintaining the uterine lining. Gestoserv is indicated for the treatment of progesterone deficiency states, including luteal phase support in assisted reproductive technology (ART) cycles, prevention of threatened or recurrent miscarriage, and management of secondary amenorrhea. It is also used in hormone replacement therapy (HRT) in postmenopausal women to counteract the effects of unopposed estrogen on the endometrium, thereby reducing the risk of endometrial hyperplasia. The natural micronized formulation enhances bioavailability and mimics endogenous progesterone activity. Dosage and duration of therapy should be individualized based on the clinical condition and response. Common adverse effects may include dizziness, headache, breast tenderness, and mild gastrointestinal disturbances. Caution is advised in patients with hepatic impairment, thromboembolic disorders, or hypersensitivity to progesterone. Gestoserv 200mg should be used under medical supervision with appropriate monitoring to ensure therapeutic efficacy and safety.