oral contraceptive

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1. diminishing the likelihood of or preventing conception.
2. an agent that does this; see also contraception.
oral contraceptive a compound, usually hormonal, taken orally in order to block ovulation and prevent the occurrence of pregnancy. See also contraception.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

or·al con·tra·cep·tive (OC),

any orally effective preparation designed to prevent conception.
Farlex Partner Medical Dictionary © Farlex 2012

oral contraceptive

Any of various pills containing estrogen and a progestin, or a progestin alone, that inhibit ovulation and are used to prevent conception. Also called birth control pill.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.

oral contraceptive

Gynecology A preparation of synthetic hormones intended to make a ♀ inconceivable by inhibiting ovulation OC formats Sequential method, combined method. See Biphasic contraceptive, Contraceptives, Monophase contraceptive, Third-generation contraceptive, Triphasic contraceptive.
Oral contraceptives, contraindications
Age–over 35
Breast CA or other estrogen-dependent malignancy
Breast-feeding and < 6 weeks after delivery
Cardiovascular defects–acute MI, ASHD, CVA/TIA
Circulatory defects–varicose veins, phlebitis
Cystic fibrosis
Diabetes and long-term OC use
Liver disease–hepatitis, CA, neoplasms
Obesity–BMI > 30
Pregnancy–current, suspected, or recently ended
Sickle-cell disease
Smoking–especially > 1 pack/day
McGraw-Hill Concise Dictionary of Modern Medicine. © 2002 by The McGraw-Hill Companies, Inc.

or·al con·tra·cep·tive

(OC) (ōr'ăl kon'tră-sep'tiv)
A medication taken by mouth designed to prevent conception.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012

oral contraceptive

A drug or combination of drugs taken by mouth for the purpose of preventing pregnancy. Most oral contraceptives must be taken by women. They contain oestrogens and/or PROGESTOGENS and act by preventing the ovaries from producing eggs (ova). They also have some effect in making the lining of the womb less suitable for implantation of the ovum and may make the mucus in the canal of the cervix less easily passable by sperms. Oral contraceptives are second after sterilization in effectiveness in avoiding pregnancy. Risk attributable to oral contraceptives is very small among non-smokers but there are certain categories, notably women with thrombophilia from genetic mutations, in which the risk is slightly increased. The increased risk of breast cancer has been greatly exaggerated. It amounts to no more than roughly 1 additional case per 20,000 women. Also known as ‘the pill’. See also CONTRACEPTION.
Collins Dictionary of Medicine © Robert M. Youngson 2004, 2005
References in periodicals archive ?
The literature has not addressed the effects of forms of hormonal contraception on the voice other than oral contraception such as intrauterine devices, patches, rings, and implants.
Contradictory reports have been published about the links between exercise, smoking, caffeine, oral contraception use, and premenstrual mastalgia (7, 9, 11-15).
Check for any contraindications, such as a history of migraine headache with aura or a clotting abnormality (personal or in a first-degree relative) before prescribing oral contraception. If your patient is having regular, monthly periods, and she's had a period in the last month, some pediatricians still will feel comfortable prescribing only if they get a urine pregnancy test.
"Further studies are needed to determine how women with diabetes are affected by DMPA and oral contraception, but these results are reassuring for non-diabetic women already receiving the shot or on the pill," said Dr.
2010 marks the 50th anniversary of the introduction of the first oral contraception, popularly known as "the pill".
After three or four months of using the oral contraceptives--the time it usually takes for the body to acclimate to the pill--the women had multiple ultrasounds and blood tests to determine if ovulation was being suppressed, which is the goal of oral contraception. Of those who used the pill consistently, three of the 96 with normal weight ovulated, as did one of the 54 with obesity.
and several other countries in various regions, it is approved as an oral contraceptive as well as for the treatment of the symptoms of Premenstrual Dysphoric Disorder (PMDD) and/or moderate acne vulgaris in women desiring oral contraception.
The results are from the Royal College of GPs Oral Contraception Study, one of the world's largest investigations into the health effects of the Pill.
2009) indicates that approximately two million women in their fertile years use oral contraception; that means there are eight million abortions per year.