Pseudo-menopausal therapy, also known as pseudo-pregnancy therapy, involves the use of large doses or much higher amounts of progestin than usual treatment to bring the body to a pregnancy-like state. In this case, the progestin causes the lining to change toward the secretory phase so that it stops growing and leaves the lining in a more stable state. Commonly used progestins are progesterone and amnestic progesterone, which are available as intramuscular injections and orally. Usually, it takes more than six months for the medication to reach the concentration needed by the body to bring the lining to a more stable state, and the lining will not shed regularly, creating a pseudo-menopausal state. During the use of the drug, it must be taken under the guidance of a doctor, as irregular use can easily lead to amenorrhea or endocrine disorders.