Puberty blockers, also called puberty inhibitors, puberty suppressors, or hormone suppressors, are a group of medications used to inhibit puberty. They were originally used to treat children with precocious puberty or other such early onset of puberty. Puberty blockers stunt the growth of sexual organs and production of hormones. Other effects include the suppression of facial hair, deep voices, and Adam's apples for boys and the halting of breast growth and menstruation in girls.
They have been used in children diagnosed with gender identity disorder (GID), a physical condition in which a person feels that they are one sex while their body is another. Children can be prescribed puberty blockers, with their parent's permission, by an endocrinologist, usually after psychiatric or mental health evaluations. Puberty blockers take the form of a monthly injection. Currently, treatment including puberty blockers are not worldwide.