oral contraceptive

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contraceptive

 [kon″trah-sep´tiv]
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.

oral contraceptive

n.
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 contraceptive (OC)

oral hormone medication for contraception. The two major sex hormones in females are estrogens and progestins. When synthetic forms of these hormones are taken, they inhibit the production of gonadotropin-releasing hormone by the hypothalamus; the pituitary therefore does not secrete gonadotropins to stimulate follicular maturation and ovulation. Depending on the formulation, cyclical changes in the uterus, vagina, and breasts may be similar to a normal menstrual cycle. Progestin-only oral contraceptives generally do not block ovulation. Instead they cause the cervical mucus to remain thick, which prevents the entry of sperm into the uterus and fallopian tubes. Seasonale, an extended-cycle method of contraception with menstrual periods every three months, was recently approved by the FDA. Contraindications to the oral contraceptives include pregnancy, diabetes mellitus, liver disease, hyperlipidemia, thrombotic complications, coronary artery disease, and sickle cell disease. Patients with depression and migraine headaches and those who are heavy cigarette smokers need to be followed up more often. The pregnancy rate when oral contraceptives are used correctly is less than 0.2% a year. See also contraception.

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
Hypertension
Liver disease–hepatitis, CA, neoplasms
Migraines
Obesity–BMI > 30
Pregnancy–current, suspected, or recently ended
Sickle-cell disease
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.

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.

oral

1. pertaining to the mouth; taken through or applied in the mouth, as an oral medication.
2. denoting that aspect of the teeth which faces the oral cavity or tongue.

oral cavity
see mouth.
oral contraceptive
contraceptive agent taken by mouth.
oral dysphagia
see oropharyngeal dysphagia.
oral necrobacillosis
an infectious stomatitis of calves caused by Fusobacterium necrophorum. There are deep necrotic ulcers in the mouth, e.g. lateral to the molar teeth, foul breath, drooling saliva, fever and toxemia. See also calf diphtheria. Called also necrotic stomatitis.
oral neoplasm
is usually squamous cell carcinoma of the gum epithelium. It impedes mastication.
oral plasmacytoma
an unusual benign oral neoplasm of older dogs; appears as a red, lobulated, raised mass on the gingiva.
oral plate
separates the stomodeum from the pharyngeal cavity; subsequently breaks down to become the palatoglossal arch; called also oropharyngeal membrane.
oral restraint
the use of a mouth speculum, gag or wedge to permit examination and the carrying out of procedures in the mouth without danger of being bitten.
References in periodicals archive ?
Smoking cigarettes while taking birth control pills dramatically increases risks of heart attack for women over age 35.
What happens if this compound, which is active at low levels of exposure, combines with estrogen from a birth control pill in the water?
Although there are some serious side effects that can be associated with birth control pills, doctors say that a woman's risk of dying from a normal pregnancy or from an abortion is greater than her risk of dying from taking oral contraceptives.
Commenting on the FDA warning, Wendy Fleishman, a prominent personal injury attorney with the national plaintiffs' law firm Lieff Cabraser Heimann & Bernstein, LLP, stated, "Too many active and healthy women have suddenly died from, or suffered severe, life-threatening blood clots allegedly caused by taking Drospirenone-containing birth control pills, like YAZ.
Blood clots are a well-known side effect of birth control pills, but they have been especially prevalent in women who take Yasmin or Yaz.
Low-dose birth control pills (those with 20 mcg of estrogen) are a good option for the years just prior to menopause--called the menopause transition or "perimenopause"--as long as you do not smoke, according to the American Academy of Family Physicians (AAFP).
Over the long term, however, IUDs are cost-effective; when you break the cost down over a five-year period, IUDs cost about 11 dollars a month, the same as birth control pills.
Some women find their migraines improve once they start on birth control pills, especially if those migraines precede their menses.
Sweden's Medical Products Agency (MPA) asked Larsson to review potential environmental risks of synthetic estrogens in birth control pills, contraceptive rings, and patches.
PILL PANACHE: Nicole Miller, the designer famous for conversation print ties, has put her signature artwork on yet another vehicle: birth control pills.
What can cause birth control pills to be ineffective and lead to pregnancy?
I am training to run my first marathon and am now running 35 to 40 miles a week I am going to stop taking birth control pills in a few months in order to try to get pregnant.