oral contraceptive(redirected from Birth control pills)
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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.
or·al con·tra·cep·tive (OC),
any orally effective preparation designed to prevent conception.
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.
oral contraceptiveGynecology 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
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
Diabetes and long-term OC use
Liver disease–hepatitis, CA, neoplasms
Obesity–BMI > 30
Pregnancy–current, suspected, or recently ended
Smoking–especially > 1 pack/day
or·al con·tra·cep·tive(OC) (ōr'ăl kon'tră-sep'tiv)
A medication taken by mouth designed to prevent conception.