Oral Contraceptive Formulations - Progestogen-only Pills

Progestogen-only Pills

Progestogen-only pills (POPs) use progestogen alone with doses taken continuously and no gap between packs taken. People who use them may experience irregular light bleeds on POPs, and whilst irregular in the first few months of taking, usually settles to a regular pattern in time.

The following progestogens are used:

  • 350 µg norethindrone (UK: Micronor, Janssen-Cilag; Noriday, Pfizer; US: Micronor, Ortho-McNeil; Nor-QD, Watson; Nora-BE, Watson; Jolivette, Watson; Camila, Barr; Errin, Barr)
  • 500 µg ethynodiol diacetate (UK: Femulen, Pfizer)
  • 30 µg levonorgestrel (UK: Norgeston, Bayer; AUS: Microlut, Bayer)
  • 75 µg desogestrel (UK: Cerazette, Loestrin)

Read more about this topic:  Oral Contraceptive Formulations

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