Gestone Injection contains Progesterone 100 mg and is indicated for the management of various gynecological and obstetric conditions requiring progesterone supplementation. Progesterone is a naturally occurring steroid hormone essential for the regulation of the menstrual cycle, maintenance of pregnancy, and preparation of the endometrium for implantation. Gestone Injection is primarily used in assisted reproductive technologies such as in vitro fertilization (IVF) to support the luteal phase and promote embryo implantation. It is also prescribed for the treatment of progesterone deficiency states, including amenorrhea, dysfunctional uterine bleeding, and threatened miscarriage. The intramuscular administration of Gestone ensures rapid absorption and sustained plasma levels of progesterone, facilitating effective therapeutic outcomes. Dosage and duration of therapy should be individualized based on the clinical condition and physician’s discretion. Common adverse effects may include injection site pain, local irritation, and mild systemic reactions such as dizziness or headache. Contraindications include known hypersensitivity to progesterone or any component of the formulation, active thrombophlebitis, and certain hormone-dependent malignancies. Caution is advised in patients with hepatic impairment, cardiovascular disorders, or history of thromboembolic events. Gestone Injection should be used under strict medical supervision with appropriate monitoring to ensure safety and efficacy.