DrugDigest: Norgestrel-Ethinyl Estradiol ( Lo/Ovral ) - Information on dosage, usage, side effects, interactions, and drug comparisons, including generics when available. - http://www.drugdigest.org/DD/DVH/Uses/0,3915,6439%7CNorgestrel%252Dethinyl%2BEstradiol%2Boral,00.html
Lo/Ovral-28 - Prescribing information for US residents in PDF format. [Acrobat Reader required] - http://www.wyeth.com/content/getfile.asp?id=114
Lo/Ovral - Prescribing information for US residents in PDF format. [Acrobat Reader required] - http://www.wyeth.com/content/getfile.asp?id=113