minipillereitä

Minipillerit, also known as progestogen-only pills (POPs), are a type of oral contraceptive containing only a progestogen hormone. Unlike combined oral contraceptive pills which also contain estrogen, minipills rely solely on progestogen to prevent pregnancy. They are taken daily at the same time each day to maintain effectiveness.

The primary mechanism of action for minipills is to thicken cervical mucus, making it more difficult for sperm to reach the uterus. Additionally, in some women, minipills can suppress ovulation, though this is not as consistent a mechanism as with combined pills. They can also cause thinning of the uterine lining, which may prevent a fertilized egg from implanting.

Minipills are often prescribed to women who cannot take estrogen-containing contraceptives due to health reasons, such as a history of blood clots, migraines with aura, or high blood pressure. They can also be a suitable option for breastfeeding mothers, as estrogen can sometimes affect milk production.

Common side effects of minipills can include irregular menstrual bleeding, spotting, or amenorrhea (absence of periods). Other potential side effects may include headaches, breast tenderness, mood changes, and acne. It is crucial to take minipills at the same time every day, as a delay of even a few hours can significantly reduce their effectiveness. If more than a certain amount of time has passed, backup contraception may be needed. Minipills offer a high level of protection against pregnancy when used correctly, with typical use effectiveness rates comparable to combined oral contraceptives.