Oral contraceptives are medications taken by mouth for the purpose of
Two types of female oral contraceptive pill are widely available:
combined oral contraceptive pillcontains oestrogen and a progestogen, and is taken once per day.
progestogen only pillcontains only progestogen, and is also taken once per day.
Other types of female oral contraceptive are experimental or only available in limited areas:
Mifepristoneis an antiprogestogen which has been used as a daily oral contraceptive in investigational clinical trials.
Ormeloxifene(also known as Centchroman) is a selective oestrogen receptor modulatorwhich is taken one to two times per week. Ormeloxifene is approved as an oral contraceptive only in India.
Male oral contraceptives are currently not available commercially, although several possibilities are in various stages of research and development.
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oral contraceptive — noun a contraceptive in the form of a pill containing estrogen and progestin to inhibit ovulation and so prevent conception • Syn: ↑pill, ↑birth control pill, ↑contraceptive pill, ↑oral contraceptive pill, ↑anovulatory drug, ↑anovulant •… … Useful english dictionary
oral contraceptive — UK / US noun [countable] Word forms oral contraceptive : singular oral contraceptive plural oral contraceptives formal a pill that a woman takes every day to prevent herself from becoming pregnant. It is usually called the pill and is a form of… … English dictionary
Oral contraceptive — A birth control pill taken by mouth. Most oral contraceptives include both estrogen and progesterone. When given in certain amounts and at certain times in the menstrual cycle, these hormones prevent the ovary from releasing an egg for… … Medical dictionary
oral contraceptive — oral contra ceptive n a drug that a woman takes by mouth, so that she can have sex without having a baby = ↑pill … Dictionary of contemporary English
oral contraceptive — oral contra ceptive noun count FORMAL a pill that a woman takes every day to prevent herself from becoming pregnant. It is usually called the pill and is a form of birth control … Usage of the words and phrases in modern English
oral contraceptive — a tablet, containing one or more synthetic female sex hormones, taken by women to prevent conception. Most oral contraceptives are combined pills, consisting of an oestrogen, which blocks the normal process of ovulation, and a progestogen, which… … The new mediacal dictionary
oral contraceptive — noun Date: 1959 birth control pill … New Collegiate Dictionary
oral contraceptive — Pharm. See birth control pill. [1955 60] * * * … Universalium
oral contraceptive — noun (C) a drug that a woman takes by mouth, so that she can have sex without having a baby; the pill (pill (2)) … Longman dictionary of contemporary English
oral contraceptive — o′ral contracep′tive n. pha birth control pill • Etymology: 1955–60 … From formal English to slang