Intramuscular Prepubertal cryptorchidism in males Adult: 500-4000 u injected 3 times wkly. Treatment should continue for 1-2 mth after testicular descent. Male infertility due to hypogonadotrophic hypogonadism Adult: 500-4000 u injected 2-3 times wkly. Anovulatory infertility Adult: Single dose of 5000-10,000 u. Up to 3 repeated injections of up to 5000 u each may be given within the following 9 days to prevent corpus luteum insufficiency. Delayed puberty associated with hypogonadism in males Adult: Male: Initially, 500-1500 u twice a wk titrated against plasma-testosterone concentration.