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Oral Contraceptive Pills |
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Note: Information provided on this page is for reference only, please seek medical assistance when in doubt
Oral contraceptives pills abbreviated as OCPs and also known as birth control pills are medications
taken by mouth for the purpose of birth control. Oral contraceptive pills work by inhibiting ovulation and
fertilization.
Oral contraceptive pills are of type hormonal contraception that primarily act on the endocrine
system and are mostly composed of steroid hormones. About 14% of the world's contraceptive users rely on
Oral contraceptive pills and they are highly effective when taken on the prescribed schedule, with pregnancy
rates of less than 1% per year and when used perfectly can ensure pregnancy rate up to 0.3% or less.
Currently they are commercially available only for women, although hormonal contraceptives for men
are being clinically tested. There are two types of female oral contraceptive pill that are taken once
per day, they are the combined oral contraceptive pill contains estrogen and progestin and the progestin-only pill
Combined oral contraceptive pill contains both an estrogen and a progestin work by suppressing
ovulation and thickening cervical mucus. While Progestogen-only pills contain only progesterone or one
of its synthetic analogues (progestins) which reduce the frequency of ovulation, most of them rely more
heavily on changes in cervical mucus.
Combined oral contraceptive pills
Combined oral contraceptive pill (COCPs) or simply the pills is the most popular form of hormonal contraception
and is taken once a day for 21 days followed by a seven-day break, although other regimens are also used.
Progestogen-only oral contraceptive pills
The progestogen only pill or POP is taken once per day within the same three-hour window. Several
different formulations of POP are marketed. A low-dose formulation is known as the minipill. Unlike COCPs
progestogen-only pills are taken every day with no breaks or placebos. For women not using ongoing hormonal
contraception, progestogen-only pills may be taken after intercourse as emergency contraception. There
are a number of dedicated products sold for this purpose.
Ormeloxifene
Ormeloxifene is a selective estrogen receptor modulator (SERM) in the form of pill that is taken once
per week.
Note: Oral contraceptive pill and other form of hormonal contraceptives are associated
with some health risk and women are advisable to consult their local health center before using them.
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