HCG 5000 IU is a medication primarily used for fertility treatments. It contains human chorionic gonadotropin, a hormone that is naturally produced during pregnancy. In fertility treatments, HCG 5000 IU is administered to stimulate ovulation in women who have difficulty conceiving, often as part of assisted reproductive technologies like in vitro fertilization (IVF). It is also used to treat hypogonadism in men, where it helps to increase testosterone production. The dosage is typically given as an intramuscular injection, and the 5000 IU dose refers to the concentration of the hormone in each injection. In addition to its role in fertility treatments, HCG 5000 IU may be used to treat other medical conditions as prescribed by a doctor.