Each mL of the solution contains 600 IU of follitropin alfa*, (equivalent to 44 micrograms).
Each pre-filled multidose pen delivers 900 IU (equivalent to 66 micrograms) in 1.5 mL. Gonal-F 900IU solution for injection in pre-filled pen is indicated for:

In adult women:
• Anovulation (including polycystic ovarian syndrome) in women who have been unresponsive to treatment with clomiphene citrate.
• Stimulation of multifollicular development in women undergoing superovulation for assisted reproductive technologies (ART) such as in vitro fertilisation (IVF), gamete intra-fallopian transfer and zygote intra-fallopian transfer.
• Gonal-F in association with a luteinising hormone (LH) preparation is recommended for the stimulation of follicular development in women with severe LH and FSH deficiency. In clinical trials these patients were defined by an endogenous serum LH level < 1.2 IU/L.

In adult men:
• Gonal-F is indicated for the stimulation of spermatogenesis in men who have congenital or acquired hypogonadotrophic hypogonadism with concomitant human Chorionic Gonadotropin (hCG) therapy.