Indication: 1. To supplement the lack of estrogen and treat female hypogonadism, amenorrhea, menopausal syndrome, etc.; used for the treatment of advanced breast cancer (postmenopausal women) and advanced prostate cancer; used in combination with progesterone drugs, it can inhibit ovulation and can be used as a contraceptive. It is mainly used clinically as an ovulation inhibitor; it is also used for cryptorchidism and androgen excess in children, pituitary tumors, etc. It is used to diagnose hypothalamic-adenohypophysial-gonadal dysfunction, which can be based on changes in gonadotropin and sex hormone levels. 2. To treat amenorrhea and infertility caused by hypogonadism due to insufficient secretion of gonadotropin, and infertility of multifollicular ovary. For amenorrhea related to weight loss, the weight should be corrected by diet first. It is also used for prostate cancer (often used in combination with cyproterone acetate or fluazifop), delayed or early puberty, and endometrial dysplasia. Main

Indication: 1. To supplement the lack of estrogen and treat female hypogonadism, amenorrhea, menopausal syndrome, etc.; used for the treatment of advanced breast cancer (postmenopausal women) and advanced prostate cancer; used in combination with progesterone drugs, it can inhibit ovulation and can be used as a contraceptive. It is mainly used clinically as an ovulation inhibitor; it is also used for cryptorchidism and androgen excess in children, pituitary tumors, etc. It is used to diagnose hypothalamic-adenohypophysial-gonadal dysfunction, which can be based on changes in gonadotropin and sex hormone levels. 2. To treat amenorrhea and infertility caused by hypogonadism due to insufficient secretion of gonadotropin, and infertility of multifollicular ovary. For amenorrhea related to weight loss, the weight should be corrected by diet first. It is also used for prostate cancer (often used in combination with cyproterone acetate or fluazifop), delayed or early puberty, and endometrial dysplasia. Main

Indication: 1. Diagnosis and treatment of cryptorchidism before puberty. 2. Male infertility caused by hypopituitarism can be used in combination with urinary gonadotropins. Those with long-term hypogonadotropin function should also be treated with testosterone. 3. Female anovulatory infertility caused by pituitary gonadotropin deficiency is often treated with clomiphene in combination with postmenopausal gonadotropins to promote ovulation. 4. For in vitro fertilization to obtain multiple oocytes, it needs to be used in combination with postmenopausal gonadotropins. 5. Treatment of female luteal insufficiency. 6. Functional uterine bleeding, threatened abortion in early pregnancy, and habitual abortion.

Indication: 1. Diagnosis and treatment of cryptorchidism before puberty. 2. Male infertility caused by hypopituitarism can be used in combination with urinary gonadotropins. Those with long-term hypogonadotropin function should also be treated with testosterone. 3. Female anovulatory infertility caused by pituitary gonadotropin deficiency is often treated with clomiphene in combination with postmenopausal gonadotropins to promote ovulation. 4. For in vitro fertilization to obtain multiple oocytes, it needs to be used in combination with postmenopausal gonadotropins. 5. Treatment of female corpus luteum insufficiency. 6. Functional uterine bleeding, threatened abortion in early pregnancy, and habitual abortion.

Indication: 1. Diagnosis and treatment of cryptorchidism before puberty. 2. Male infertility caused by hypopituitarism can be used in combination with urinary gonadotropins. Those with long-term hypogonadotropin function should also be treated with testosterone. 3. Female anovulatory infertility caused by pituitary gonadotropin deficiency is often treated with clomiphene in combination with postmenopausal gonadotropins to promote ovulation. 4. For in vitro fertilization to obtain multiple oocytes, it needs to be used in combination with postmenopausal gonadotropins. 5. Treatment of female corpus luteum insufficiency. 6. Functional uterine bleeding, threatened abortion in early pregnancy, and habitual abortion.

Indication: 1. Diagnosis and treatment of cryptorchidism before puberty. 2. Male infertility caused by hypopituitarism can be used in combination with urinary gonadotropins. Those with long-term hypogonadotropin function should also be treated with testosterone. 3. Female anovulatory infertility caused by pituitary gonadotropin deficiency is often treated with clomiphene in combination with postmenopausal gonadotropins to promote ovulation. 4. For in vitro fertilization to obtain multiple oocytes, it needs to be used in combination with postmenopausal gonadotropins. 5. Treatment of female corpus luteum insufficiency. 6. Functional uterine bleeding, threatened abortion in early pregnancy, and habitual abortion.

Indication: 1. Diagnosis and treatment of cryptorchidism before puberty. 2. Male infertility caused by hypopituitarism can be used in combination with urinary gonadotropins. Those with long-term hypogonadotropin function should also be treated with testosterone. 3. Female anovulatory infertility caused by pituitary gonadotropin deficiency is often treated with clomiphene in combination with postmenopausal gonadotropins to promote ovulation. 4. For in vitro fertilization to obtain multiple oocytes, it needs to be used in combination with postmenopausal gonadotropins. 5. Treatment of female corpus luteum insufficiency. 6. Functional uterine bleeding, threatened abortion in early pregnancy, and habitual abortion.

Indication: 1. Diagnosis and treatment of cryptorchidism before puberty. 2. Male infertility caused by hypopituitarism can be used in combination with urinary gonadotropins. Those with long-term hypogonadotropin function should also be treated with testosterone. 3. Female anovulatory infertility caused by pituitary gonadotropin deficiency is often treated with clomiphene in combination with postmenopausal gonadotropins to promote ovulation. 4. For in vitro fertilization to obtain multiple oocytes, it needs to be used in combination with postmenopausal gonadotropins. 5. Treatment of female corpus luteum insufficiency. 6. Functional uterine bleeding, threatened abortion in early pregnancy, and habitual abortion.

Indication: 1. Diagnosis and treatment of cryptorchidism before puberty. 2. Male infertility caused by hypopituitarism can be used in combination with urinary gonadotropins. Those with long-term hypogonadotropin function should also be treated with testosterone. 3. Female anovulatory infertility caused by pituitary gonadotropin deficiency is often treated with clomiphene in combination with postmenopausal gonadotropins to promote ovulation. 4. For in vitro fertilization to obtain multiple oocytes, it needs to be used in combination with postmenopausal gonadotropins. 5. Treatment of female corpus luteum insufficiency. 6. Functional uterine bleeding, threatened abortion in early pregnancy, and habitual abortion.

Indication: 1. Diagnosis and treatment of cryptorchidism before puberty. 2. Male infertility caused by hypopituitarism can be used in combination with urinary gonadotropins. Those with long-term hypogonadotropin function should also be treated with testosterone. 3. Female anovulatory infertility caused by pituitary gonadotropin deficiency is often treated with clomiphene in combination with postmenopausal gonadotropins to promote ovulation. 4. For in vitro fertilization to obtain multiple oocytes, it needs to be used in combination with postmenopausal gonadotropins. 5. Treatment of female corpus luteum insufficiency. 6. Functional uterine bleeding, threatened abortion in early pregnancy, and habitual abortion.