title: Evra dose change: an air of secrecy.
abstract: The amount of ethinylestradiol contained in Evra transdermal contraceptive patches has been cut by 20%, behind a shroud of secrecy.
mesh_terms: D000279:Administration, Cutaneous; D003270:Contraceptive Agents / Q000008:administration & dosage* / Q000097:blood; D004997:Ethinyl Estradiol / Q000008:administration & dosage* / Q000097:blood / Q000493:pharmacokinetics; D005060:Europe; D005260:Female; D006801:Humans; D012869:Skin Absorption / Q000187:drug effects; D013997:Time Factors; D014342:Truth Disclosure
chemical_list: D003270:Contraceptive Agents; D004997:Ethinyl Estradiol