Opill (also called the Minipill)

Opill is a progestin-only birth control pill.  Progestin is a human made hormone that is similar to the natural hormone called progesterone.  Progestin is in the category of a steroid and has benefits and risks.  It is used for various purposes (see Cleveland Clinic article).

One of the challenges with Opill, which is a non-prescription medication, is that it must be taken each day at around the same time.  If you take it more than three hours late, it may not work (see Mayo Clinic article).

Opill works in three ways:

  1. It slows an egg’s flow through the fallopian tube.
  2. It thickens cervical mucus to help prevent sperm from entering the uterus.
  3. It thins the lining of the womb so that a tiny human may be prevented from implanting in the wall of the uterus.

The risks of Opill, like birth control pills in general, include:

  • Increased risk of breast cancer.
  • Increased risk of liver disease.
  • Bleeding.
  • Increased chance of high blood pressure and stroke.

Opill is manufactured by Perrigo Company.


Note: Information on this website is intended to supplement, not substitute for the knowledge of your doctor, or other health care provider.