Isofit 20mg Tablet SR contains dydrogesterone, a synthetic progestogen used primarily in the management of various gynecological conditions associated with progesterone deficiency. Each sustained-release tablet delivers 20mg of dydrogesterone, ensuring a prolonged therapeutic effect. Isofit is indicated for the treatment of menstrual disorders such as irregular menstruation, secondary amenorrhea, and dysfunctional uterine bleeding. It is also employed in hormone replacement therapy to support the luteal phase in assisted reproductive techniques and to prevent threatened or habitual miscarriage due to progesterone insufficiency. Dydrogesterone acts by binding to progesterone receptors, thereby modulating the endometrial lining and maintaining pregnancy. The sustained-release formulation allows for consistent plasma drug levels, improving compliance and minimizing fluctuations that could affect efficacy. Isofit should be used under medical supervision, with dosage tailored according to the specific condition and patient response. Contraindications include known hypersensitivity to dydrogesterone or any tablet excipients, undiagnosed vaginal bleeding, and active thromboembolic disorders. Common side effects may include headache, breast tenderness, nausea, and mild gastrointestinal disturbances. Regular monitoring is advised during prolonged therapy to assess therapeutic outcomes and detect potential adverse effects.