Progestogen-Only Pill

The progestogen-only pill (also known as the “mini-pill” or POP) is a type of oral contraception that contains only one hormone, progestin, to prevent pregnancy. The mini-pill works by thickening the cervical mucus to block sperm from reaching the egg and by altering the lining of the uterus to prevent implantation of a fertilized egg.

To use the progestogen-only pill, you take one pill every day at the same time. It is important to take the pill at the same time every day to ensure maximum effectiveness. If a pill is missed, or taken more than 3 hours later than usual, the effectiveness of the mini-pill can be reduced and it may be necessary to use additional contraception, such as a condom, to prevent pregnancy.

Common side effects of the progestogen-only pill include:

  • Irregular bleeding
  • Headaches
  • Nausea
  • Acne

It is important to talk to a healthcare professional about the risks and benefits of the progestogen-only pill, and to discuss any health conditions or medications that may affect its use. Regular use of the progestogen-only pill can provide effective protection against pregnancy, but does not protect against STIs. It may be a good option if you cannot use Estrogen-containing contraceptives.

Page last reviewed: 6 August 2024