Ethinylestradiol/megestrol acetate

Ethinylestradiol/megestrol acetate is a combined oral contraceptive pill that contains ethinylestradiol, a synthetic estrogen, and megestrol acetate, a synthetic progestogen. This combination is used to prevent pregnancy.

Etymology

The term "ethinylestradiol" is derived from the words "ethynyl", referring to the ethynyl group present in the compound, and "estradiol", which is a type of estrogen. "Megestrol acetate" is named for its components: "megestrol", a synthetic progestogen, and "acetate", referring to the acetic acid derivative present in the compound.

Pharmacology

Ethinylestradiol/megestrol acetate works by preventing ovulation, altering the cervical mucus to make it difficult for sperm to reach the egg, and changing the lining of the uterus to prevent a fertilized egg from implanting.

Side effects

Possible side effects of ethinylestradiol/megestrol acetate include nausea, vomiting, headache, bloating, breast tenderness, and changes in menstrual cycle.

Interactions

Ethinylestradiol/megestrol acetate may interact with other medications, including certain antibiotics, antifungal medications, and HIV medications. It is important to inform your healthcare provider of all medications you are taking before starting ethinylestradiol/megestrol acetate.

See also

• Oral contraceptive pill
• Ethinylestradiol
• Megestrol acetate

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