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publicationDate 1989-03-28-04:00^^<http://www.w3.org/2001/XMLSchema#date>
publicationNumber US-4816258-A
titleOfInvention Transdermal contraceptive formulations
abstract A transdermal delivery system for the administering of ethinyl estradiol and levonorgestrel, in combination, utilizing a polymer matrix having the drug formulation along with a permeation enhancer dispersed throughout.
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