Foliculin 150IU Injection helps in normal development of an egg in a woman's ovary (female reproductive organ), and stimulates the release of a healthy, matured egg. This helps to treat infertility in women and increases the chance of a successful pregnancy. It is commonly used in women who are taking fertility treatment or in vitro fertilisation (IVF). It is given as an injection by a doctor or nurse and should not be self-administered. You should use the medicine as prescribed for it to be effective.