Birth control pills are a widely used method of contraception, offering an effective way to prevent pregnancy when taken consistently. These daily pills contain hormones that regulate the menstrual cycle and inhibit ovulation. A typical pack of birth control pills often includes different types of pills, which play distinct roles in the monthly regimen.
Understanding Active and Inactive Pills
Birth control pill packs generally consist of two main types: active pills and inactive pills. Active pills contain synthetic forms of hormones, typically estrogen and progestin, which work to prevent pregnancy. These hormones stop the ovaries from releasing an egg, thicken cervical mucus to block sperm, and thin the uterine lining to prevent implantation. Users take active pills for most of their cycle, usually for 21 to 24 days.
Inactive pills, often called placebo or reminder pills, do not contain hormones. Instead, they might contain inert ingredients like sugar, or sometimes vitamins such as iron or folic acid. The primary purpose of these inactive pills is to help maintain the daily habit of taking a pill, preventing users from getting out of routine during the hormone-free interval. This ensures a seamless transition to the next pack of active pills.
The Specific Role of Green Pills
In many birth control packs, green pills are commonly the inactive or placebo pills. These green pills serve several important functions, even though they lack hormones. They help users maintain a consistent daily routine, reinforcing the habit of taking a pill every day and preventing missed doses when it is time to start a new pack of hormone-containing pills.
Taking these inactive pills also facilitates withdrawal bleeding, which is a period-like bleed that occurs due to the temporary drop in hormone levels. This bleeding is not a true menstrual period but a response to the absence of active hormones, providing a familiar cycle for many users. Green placebo pills offer no contraceptive protection; pregnancy prevention relies solely on the consistent intake of the active, hormone-containing pills. While pill colors can vary by brand, green pills are most often inactive and indicate the hormone-free interval in standard 28-day packs.
Why Every Pill Matters
Adhering to the prescribed schedule for every pill, including the green inactive ones, is important for maintaining contraceptive efficacy. Taking inactive pills reinforces the daily habit, crucial for consistent protection when transitioning back to active pills. This continuous routine minimizes the chance of forgetting to start the next pack on time, which could otherwise compromise effectiveness.
Skipping inactive pills or starting the next active pack late can reduce contraceptive protection. If any pills, whether active or inactive, are missed, consult the pill’s instructions or a healthcare provider for guidance. Always follow the specific instructions provided with your birth control to ensure consistent protection.