jälkiehkäisyvalmisteet

Jälkiehkäisyvalmisteet, commonly known as emergency contraception or the morning-after pill, are medications used to prevent pregnancy after unprotected sexual intercourse or contraceptive failure. These products are not intended for regular use as a primary form of birth control. Their effectiveness decreases the longer they are taken after intercourse, and they are most effective when used as soon as possible.

There are several types of emergency contraception available. One common type contains levonorgestrel, a synthetic hormone similar to progesterone. This medication works primarily by preventing or delaying ovulation, the release of an egg from the ovary. In some cases, it may also thicken cervical mucus, making it more difficult for sperm to reach an egg. Another type uses ulipristal acetate, which also works by delaying ovulation but may remain effective for a longer period after intercourse than levonorgestrel-based pills. Copper intrauterine devices (IUDs) can also be used as emergency contraception if inserted within a specified timeframe after unprotected sex. They work by preventing fertilization and implantation.

Jälkiehkäisyvalmisteet are available over-the-counter in many countries, while others may require a prescription. It is important to note that these medications do not protect against sexually transmitted infections. If a pregnancy has already occurred, emergency contraception will not be effective. Consulting a healthcare professional can help individuals choose the most suitable option and understand its proper usage.