–ѕа°±б>ю€ 02ю€€€/€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€м•Ѕ` рњ02bjbjжЗжЗ .ДнДн2 €€€€€€§$ђђђђ Є $¶––––––––%''''''$і h TKљ––љљK––`ееељ ––%ељ%еее–ƒ @і$ёЂ≈ђ« е%v0¶еp — p ееp щ,–"те Я–––KKџ –––¶љљљљ$$$DhD$$$h$$$€€€€ The U.S. Food and Drug Administration would like to notify you of our action today concerning Plan B, which was the subject of discussion at the December 16, 2003, joint meeting of the Nonprescription Drugs and Reproductive Health Advisory Committees.In response to the Agency's May 2004 Not Approvable letter, Barr Laboratories resubmitted their application on July 21, 2004, to switch Plan B to Over the Counter (OTC) status for women ages 16 years and older.The Center for Drug Evaluation and Research (CDER) has completed its review of the application, as amended, and has concluded that the available scientific data are sufficient to support the safe use of Plan B as an OTC product, but only for women who are 17 years of age and older.† However, the Agency is unable at this time to reach a decision on the approvability of the application because of unresolved issues that discussed below.The application presented us with three difficult and novel issues.† Specifically, the sponsor proposed that Plan B be marketed in a single package, and sold either as Rx or OTC, depending on the age of the patient.† While the Agency has allowed the same active ingredient to be marketed both Rx and OTC based on indication, strength, dosage form and route of administration, the Agency has never determined whether a drug may be both Rx and OTC based on the age of the individual using the drug.† A related concern is how, as a practical matter, an age-based distinction could be enforced.† In addition, we have never been confronted with whether the Rx and OTC versions of the same active ingredient may be marketed in a single package.† As you may be aware, questions have arisen over the years about whether there are any conditions under which an active ingredient may be simultaneously marketed in both a prescription drug product and an OTC drug product.† Notwithstanding our having allowed the practice in those rare instances where there is a meaningful difference in the indication, strength, dosage form or route of administration of the two products, we recognize that FDA's interpretation of section 503(b) of the Act has not been explicitly set forth in any of the regulations that discuss the process by which FDA classifies (or re-classifies) drugs as OTC or prescription.† See 21 CFR 310.200 and 310.201.In this case, we have decided that the appropriate course is to ask for public comments on whether we should initiate a rulemaking to codify our interpretation of section 503(b) regarding when an active ingredient can be simultaneously marketed in both a prescription drug product and an OTC drug product.† To this end, we have decided to publish an advance notice of proposed rulemaking in the Federal Register.† In addition, the notice will seek public comments on questions related to the marketing of Rx and OTC versions of the same active ingredient in a single package. We sincerely appreciate the time and scientific expertise that you have provided to the Agency on this and other issues.†Lester M. 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