"Investigators from the Women's Health Initiative (WHI) Hormone Trials are reaffirming conclusions that hormone therapy is not recommended for the prevention of chronic disease, but may remain a reasonable option for the short-term management "...
An increased risk of the following serious adverse reactions has been associated with the use of oral contraceptives (see WARNINGS):
- Arterial thromboembolism
- Pulmonary embolism
- Myocardial infarction
- Cerebral hemorrhage
- Cerebral thrombosis
- Gallbladder disease
- Hepatic adenomas or benign liver tumors.
There is evidence of an association between the following conditions and the use of oral contraceptives, although additional confirmatory studies are needed:
- Mesenteric thrombosis
- Retinal thrombosis
The following adverse reactions have been reported in patients receiving oral contraceptives and are believed to be drug related:
- Gastrointestinal symptoms (such as abdominal cramps and bloating)
- Breakthrough bleeding
- Change in menstrual flow
- Temporary infertility after discontinuation of treatment
- Melasma which may persist
- Breast changes: tenderness, enlargement, secretion
- Change in weight (increase or decrease)
- Change in cervical erosion and secretion
- Diminution in lactation when given immediately postpartum
- Cholestatic jaundice
- Rash (allergic)
- Mental depression
- Reduced tolerance to carbohydrates
- Vaginal candidiasis
- Change in corneal curvature (steepening)
- Intolerance to contact lenses
The following adverse reactions have been reported in users of oral contraceptives and the association has been neither confirmed nor refuted:
- Premenstrual syndrome
- Optic neuritis
- Changes in appetite
- Cystitis-like syndrome
- Loss of scalp hair
- Erythema multiforme
- Erythema nodosum
- Hemorrhagic eruption
- Impaired renal function
- Hemolytic uremic syndrome
- Budd-Chiari syndrome
Read the Lutera (levonorgestrel and ethinyl estradiol) Side Effects Center for a complete guide to possible side effects
Reduced efficacy and increased incidence of breakthrough bleeding and menstrual irregularities have been associated with concomitant use of rifampin. A similar association, though less marked, has been suggested with barbiturates, phenylbutazone, phenytoin, and possibly with griseofulvin, ampicillin, and tetracyclines.
INTERACTIONS WITH LABORATORY TESTS
Certain endocrine- and liver-function tests and blood components may be affected by oral contraceptives:
- Increased prothrombin and factors VII, VIII, IX, and X; decreased antithrombin 3; increased norepinephrine-induced platelet aggregability.
- Increased thyroid-binding globulin (TBG) leading to increased circulating total thyroid hormone, as measured by protein-bound iodine (PBI), T4 by column or by radioimmunoassay. Free T3 resin uptake is decreased, reflecting the elevated TBG; free T4 concentration is unaltered.
- Other binding proteins may be elevated in serum.
- Sex-hormone binding globulins are increased and result in elevated levels of total circulating sex steroids; however, free or biologically active levels remain unchanged.
- Triglycerides may be increased.
- Glucose tolerance may be decreased.
- Serum folate levels may be depressed by oral-contraceptive therapy. This may be of clinical significance if a woman becomes pregnant shortly after discontinuing oral contraceptives.
Read the Lutera Drug Interactions Center for a complete guide to possible interactions
Last reviewed on RxList: 5/16/2006
This monograph has been modified to include the generic and brand name in many instances.
Additional Lutera Information
Lutera - User Reviews
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