Norgestrel, the active ingredient in Opill, was first approved for prescription use by the FDA in 1973, more than 50 years ago, and it has decades of research and use behind it. As a “mini pill ...

Opill is often referred to as the "mini-pill," because most generic oral birth ... 075 mg of a hormone called norgestrel, which is a type of progestin, says Dr. Maria Sophocles, M.D., a board ...