Kdgest SR 300 Tablet contains Progesterone (Natural Micronized) 300 mg, a vital hormone used primarily in hormone replacement therapy, menstrual disorders, and assisted reproductive technology protocols. Progesterone is essential for regulating the menstrual cycle, supporting early pregnancy, and maintaining uterine lining integrity. The sustained-release formulation of Kdgest SR 300 ensures a controlled and prolonged release of progesterone, providing stable plasma levels over an extended period, which enhances therapeutic efficacy and patient compliance. This medication is indicated for the treatment of progesterone deficiency states, including amenorrhea, abnormal uterine bleeding due to hormonal imbalance, and as part of luteal phase support in assisted reproductive techniques such as in vitro fertilization. Additionally, it is used in the management of premenstrual syndrome and to prevent endometrial hyperplasia in postmenopausal women receiving estrogen therapy. Kdgest SR 300 should be administered under medical supervision with dosage tailored according to the clinical condition and patient response. Common side effects may include dizziness, headache, breast tenderness, and gastrointestinal disturbances. Contraindications include known hypersensitivity to progesterone, unexplained vaginal bleeding, active thromboembolic disorders, and liver dysfunction. Regular monitoring is recommended during therapy to ensure safety and effectiveness.