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It works by reducing the frequency of the pill-free or placebo days. Extended cycle use of COCPs may also be called menstrual suppression, [2] although other hormonal medications or medication delivery systems (hormonal intrauterine devices—IUDs) may also be used to suppress menses. Any brand of combined oral contraceptive pills can be used ...
The placebo, or hormone-free, week in the 28-day pill package simulates an average menstrual cycle, though the hormonal events during a pill cycle are significantly different from those of a normal ovulatory menstrual cycle. Because the pill suppresses ovulation (to be discussed more in the Mechanism of action section), birth control users do ...
The most common side-effects of combined hormonal contraceptives include headache, nausea, breast tenderness, and breakthrough bleeding. Vaginal ring use can include additional side-effects including vaginal irritation and vaginal discharge. Contraceptive skin patch use can also include a side-effect of skin irritation around the patch site. [39]
Side effects of dienogest include menstrual irregularities, headaches, nausea, breast tenderness, depression, and acne, among others. [14] Dienogest is a progestin, or a synthetic progestogen , and hence is an agonist of the progesterone receptor , the biological target of progestogens like progesterone .
The progestogen-only pill, colloquially known as "minipill". For perfect use it is 99% effective and typical use is 91% effective. Side effects of the pill include headache, dizziness, nausea, sore breasts, spotting, mood changes, acne, bloating, etc. [clarification needed] One pill offers the benefit of only having to be taken once a week:
Side effects of etonogestrel include menstrual irregularities, breast tenderness, mood changes, acne, headaches, vaginitis, and others. [4] Etonogestrel is a progestin , or a synthetic progestogen , and hence is an agonist of the progesterone receptor , the biological target of progestogens like progesterone . [ 16 ]
Side effects of NOMAC include menstrual irregularities, headaches, nausea, breast tenderness, and others. [1] [14] NOMAC is a progestin, or a synthetic progestogen, and hence is an agonist of the progesterone receptor, the biological target of progestogens like progesterone. [3] It has some antiandrogenic activity and no other important ...
[17] [4] However, it is thought that the antiandrogenic activity of CPA may only be significant at higher doses than are present in birth control pills. [4] [19] Both EE and CPA have antigonadotropic effects and act as contraceptives in women by suppressing ovulation. [17]