Hald 100mg Injection contains Progesterone (Natural Micronized) 100mg, a naturally occurring steroid hormone essential for the regulation of the menstrual cycle and maintenance of pregnancy. This injectable formulation is primarily indicated for hormone replacement therapy in women with progesterone deficiency, luteal phase support in assisted reproductive technology (ART) procedures, and prevention of preterm birth in high-risk pregnancies. Progesterone acts by preparing the endometrium for implantation and maintaining a suitable environment for fetal development. The natural micronized form ensures enhanced bioavailability and efficacy when administered intramuscularly. Hald 100mg Injection is typically administered under medical supervision, with dosage and duration tailored to the individual patient’s clinical condition and response. Common adverse effects may include injection site pain, mild sedation, dizziness, and allergic reactions, though it is generally well tolerated. Contraindications include known hypersensitivity to progesterone or any component of the formulation, unexplained vaginal bleeding, and certain hormone-sensitive malignancies. Caution is advised in patients with hepatic impairment, thromboembolic disorders, or cardiovascular disease. Hald 100mg Injection should be used during pregnancy and lactation only when clearly indicated and under strict medical guidance. Proper storage conditions and adherence to prescribed protocols are essential to ensure therapeutic efficacy and patient safety.