Progestogen-only pill
Progestogen-only pill (POP) is a type of contraceptive that contains a synthetic version of the hormone progestogen. It is also known as the mini-pill and is different from the combined oral contraceptive pill which contains both progestogen and estrogen.
Mechanism of action[edit | edit source]
The progestogen-only pill works primarily by thickening the cervical mucus to prevent sperm from reaching an egg. It also thins the lining of the uterus to make it less likely for a fertilized egg to implant and grow. Some types of progestogen-only pill can also stop ovulation.
Effectiveness[edit | edit source]
The effectiveness of the progestogen-only pill depends on how consistently and correctly it is used. With perfect use, it is over 99% effective at preventing pregnancy. However, with typical use, the effectiveness is around 92%.
Side effects[edit | edit source]
Common side effects of the progestogen-only pill include menstrual irregularities, mood changes, breast tenderness, and acne. Less common side effects include ovarian cysts, decreased libido, and weight gain.
Contraindications[edit | edit source]
The progestogen-only pill is not suitable for everyone. It should not be used by women who have breast cancer, liver disease, or a history of stroke or blood clots.
Advantages and disadvantages[edit | edit source]
The progestogen-only pill has several advantages over other forms of contraception. It can be used by women who cannot take estrogen, such as those who are breastfeeding or have a history of migraine with aura. It also does not interfere with sex and can be stopped at any time.
However, the progestogen-only pill also has some disadvantages. It must be taken at the same time every day to be effective, and it does not protect against sexually transmitted infections.
See also[edit | edit source]
- Combined oral contraceptive pill
- Emergency contraception
- Intrauterine device
- Contraceptive implant
- Contraceptive patch
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