When used properly, birth control pills offer up to 99% protection. We’ll tell you how they work and how to take them every day.
Birth control pills are one of the most widely used methods for preventing unwanted pregnancies. This hormonal drug works by preventing ovulation, that is, by preventing the ovaries from releasing an egg that could be fertilized. It also modifies cervical mucus to make it difficult for sperm to pass through and alters the endometrium, reducing the chances of implantation.
Composed of estrogen and progestin —synthetic hormones similar to those the female body produces naturally—these pills offer reliable contraceptive protection when used properly.
In addition to preventing pregnancy, birth control pills are sometimes prescribed to treat menstrual irregularities, premenstrual syndrome (PMS), or dysmenorrhea, thanks to their ability to regulate the hormonal cycle.
Mechanism of action of birth control pills
The main purpose of the birth control pill is to maintain constant hormone levels in the body, which prevents ovulation. Since an egg is not released, there is no possibility of fertilization.
The hormones in these pills also cause cervical mucus to thicken, making it difficult for sperm to travel to the uterus. They also cause changes in the lining of the uterus (endometrium), making it less likely for a fertilized egg to implant.
How should birth control pills be taken?
The effectiveness of this method depends largely on its correct use. It is recommended to take one pill daily at the same time, either with food or on an empty stomach. There are 21-day (only active pills) and 28-day (21 active pills and 7 inactive pills) versions.
It is essential to start a new pack immediately after finishing the previous one, without skipping days, to maintain contraceptive protection.
What to do if you forget to take a pill?
Missing a dose can decrease the effectiveness of birth control pills. If you miss a dose, take it as soon as you remember. If you miss a dose by more than 24 hours, it is advisable to use an additional method of contraception—such as a condom—for at least seven days.
Following the package or doctor’s instructions is key to avoiding protection failures.
With perfect use, birth control pills are 99% effective, meaning that fewer than 1 in 100 women would become pregnant in a year. However, with typical use—which includes missed or missed pills—this figure drops to 91%.
It is important to note that this method does not prevent sexually transmitted infections (STIs), so its use in combination with condoms is recommended during risky sexual relations.
+ There are no comments
Add yours