Ovitrelle (INN choreo gonadotropin alfa) is a medicinal product of choriogonadotropin alfa produced by recombinant DNA techniques. It shares the amino acid sequence with urinary hCG. Chorionic gonadotropin binds on the ovarian theca (and granulosa) cells to a transmembrane receptor shared with the luteinising hormone, the LH/CG receptor. The principal pharmacodynamic activity in women is oocyte meiosis resumption, follicular rupture (ovulation), corpus luteum formation and production of progesterone and estradiol by the corpus luteum.
In women, chorionic gonadotropin acts as a surrogate luteinising hormone surge that triggers ovulation.

GONAL-f (recombinant follitropin alfa for injection) is prescribed to supplement or replace naturally occurring FSH, an essential hormone to treat infertility in both women and men. GONAL-f® has been approved in around 100 countries worldwide for stimulating the growth of ovarian follicles and ovulation in women.

For males, GONAL-f has been approved in more than 80 countries worldwide, including Japan, for gonadal dysfunction associated with absence of sperm in the semen or male hypogonadotropic hypogonadism. In certain markets where GONAL-f is approved for this indication, the therapy needs to be in combination with human chorionic gonadotropin (hCG).

Crinone (INN progestirone) is a bioadhesive vaginal gel containing micronized progesterone in an emulsion system, which is contained in single use, one piece polyethylene vaginal applicators. The carrier vehicle is an oil in water emulsion containing the water swellable, but insoluble polymer, polycarbophil. The progesterone is partially soluble in both the oil and water phase of the vehicle, with the majority of the progesterone existing as a suspension. Physically, Crinone has the appearance of a soft, white to off-white gel.