Yhdistelmäehkäisyvalmisteet
Yhdistelmäehkäisyvalmisteet, often referred to as combined hormonal contraceptives (CHCs), are a type of birth control medication that contains two synthetic hormones: an estrogen and a progestogen. These hormones work together to prevent pregnancy primarily by inhibiting ovulation, the release of an egg from the ovary. They also thicken cervical mucus, making it harder for sperm to reach the egg, and alter the uterine lining, making implantation less likely.
CHCs are available in various forms, including oral contraceptive pills (the most common type), transdermal patches,
When used correctly, CHCs are highly effective at preventing pregnancy. However, like all medications, they can