The active substance in Pregnyl is human chorionic gonadotrophin (HCG). The action of Pregnyl is similar to that of the natural luteinising hormone (LH), which is necessary for the production of sex hormones, the growth and development of egg cells in the females and for the production of sperm in the males.

Pregnyl is human chorionic gonadotrophin, a hormone found naturally in the body. Pregnyl is used in fertility treatment as it has an action similar to that of a natural luteinising hormone (LH). Pregnyl is used in both men and women for the following conditions;

Women
Pregnyl is needed to help produce eggs along with other fertility drugs in medically assisted reproduction programmes.

Men
Pregnyl is needed for the production of sperm and for other hormonal or testicular problems.