Progestogen-only pill
What is it and how does it work?
Contains just progestogen and works mainly by thickening the mucus from the woman's cervix which makes it difficult for the sperm to reach an egg. It also causes changes in the woman's body which make it less likely that the womb will accept a fertilised egg, and sometimes stops the woman's ovaries from releasing an egg.
Who can use them?
Not everyone can take the progestogen-only pill, and a doctor or nurse will ask you about your own, and your family's medical history. You should mention any illness or operation you have had.
Where can you get them from?
Family Planning Doctors, nurses, and most GPs.
At first you will usually be given three months' supply to see how the pill suits you. After that you will need to go back to the doctor or nurse regularly to get more supplies and have your blood pressure checked.
How effective is it?
If taken according to the instructions, the progestogen-only pill is 99% effective.
This pill may be less effective in women who weigh over 70kg (11 stone). The progestogen-only pill must also be taken at around the same time each day in order to be effective. If you are sick, or have severe diarrhoea within three hours of taking the pill, you will need to use an extra contraceptive method (e.g. condoms) whilst you are ill, and for seven days afterwards.
Also, some other medicines, (including some complementary medicines) can affect how the pill works, so you may need to consider using an extra contraceptive method while you are taking the medicine and for seven days afterwards.
Contacts
The contacts database contains details of organisations that may be able to offer information or assistance on this issue.
Search the database »
Other forms of contraception:
Adapted from information produced by the FPA - www.fpa.org.uk
