Oral contraceptive pill

The Oral Contraceptive Pill (OCP), also known as birth control pill, is a type of hormonal contraception used by women to prevent pregnancy. It is one of the most popular and effective methods of birth control worldwide.

History

The development of the oral contraceptive pill was a significant milestone in reproductive health. The first oral contraceptive, Enovid, was approved by the FDA in the United States in 1960. This marked the beginning of a new era in contraception and women's health.

Types

There are two main types of oral contraceptive pills: combined oral contraceptive pills (COCs) and progestogen-only pills (POPs). COCs contain two types of hormones, estrogen and progestin, while POPs contain only progestin.

Mechanism of Action

Oral contraceptive pills work primarily by preventing ovulation. They also thicken the cervical mucus, making it difficult for sperm to reach the egg, and thin the lining of the uterus, making it less likely for a fertilized egg to implant.

Effectiveness

When used correctly, oral contraceptive pills are over 99% effective at preventing pregnancy. However, their effectiveness can be reduced if a pill is missed, taken late, or if the woman is taking certain medications.

Side Effects

Common side effects of oral contraceptive pills include nausea, breast tenderness, and changes in menstrual bleeding. Serious side effects are rare, but can include blood clots, stroke, and heart attack.

Accessibility

Oral contraceptive pills are available by prescription in most countries. In some places, they can be purchased over the counter.

See Also

• Emergency contraception
• Intrauterine device
• Condom
• Tubal ligation
• Vasectomy

• Birth control
• Contraception
• Dictionary of birth control
• Reproductive health