DrugDigest: Norethindrone and Ethinyl Estradiol - Information on dosage, usage, side effects, interactions, and drug comparisons, including generics when available. Sold under brand names such as: Brevicon, Estrostep 21, Estrostep Fe, Gencept, Genora, Jenest, and Loestrin.
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http://www.drugdigest.org/DD/DVH/Uses/0,3915,550789%7CEstrostep,00.html