Definition: Meliphagan is a brand name for several products. Meliphagan was a popular brand of oral contraceptive pills, which are usually taken with a method called a "pill box." These oral contraceptives contain hormones that help regulate the menstrual cycle and prevent pregnancy. The pill itself does not contain any active ingredients like melatonin or progestin, but it can be used in combination with other methods to provide additional protection against unwanted pregnancies. The brand name Meliphagan is often associated with the