Gonal F is a hormone medicine. It is injected under the skin to stimulate egg production. It is similar to the hormone FSH (follicle stimulating hormone).
Gonal F is often used to treat infertility, in particular for IVF procedures.
Common side effects of Gonal F include abdominal pain, bloating, pain where the injection is given, or a headache. Serious side effects are rare but they may be trouble breathing, dizziness, bleeding or swelling.