Combination birth control pills, also known as the pill, are oral contraceptives that contain estrogen and a progestin. Show Combination birth control pills keep your ovaries from releasing an egg. They also cause changes in the cervical mucus and the lining of the uterus (endometrium) to keep sperm from joining the egg. Different types of combination birth control pills contain different doses of estrogen and progestin. Continuous-dosing or extended-cycle pills allow you to reduce the number of periods you have each year. If you want to use combination birth control pills, your health care provider can help you decide which type is right for you. Products & Services
Why it's doneCombination birth control pills are a reliable form of contraception that's easily reversed. Fertility can return to normal almost immediately after stopping the pills. Other, noncontraceptive benefits of these pills include:
Combination birth control pills come in different mixtures of active and inactive pills, including:
Continuous-dosing and extended-cycle pills might provide additional benefits of suppressing menstruation, such as:
Combination birth control pills aren't appropriate for everyone, however. Your health care provider might suggest you take another form of birth control if you:
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What is the point of biphasic birth control?Biphasic oral contraceptives purportedly attempt to 'mimic' the rising and falling pattern of estrogen and progesterone as seen during the normal menstrual cycle (Upton 1983). Overall, this results in a lower total monthly steroid dosage in comparison with most older monophasic oral contraceptives.
What is the difference between monophasic and triphasic birth control?Monophasic vs.
As the names suggest, monophasic pills provide the same level of hormones throughout the pill cycle. Triphasic pills also induce a steady state of hormones, but at 3 different levels during the cycle. The 2 types are equally effective for pregnancy prevention.
What is a triphasic oral contraceptive pill?Triphasic oral contraceptive pills have 3 different doses of progestin and estrogen that change approximately every 7 days. Ethinylestradiol and norethindrone (Aranelle, Tri-Norinyl, Leena, Alyacen 7/7/7, Necon 7/7/7, Notrel 7/7/7, Dasetta 7/7/7, Cyclafem 7/7/7) Ethinylestradiol and levonorgestrel (Enpresse, Trivora)
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