Solid matrix system for transdermal drug delivery
March 20, 2012. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3632740 3769071 3896789 Use of eucalyptol for enhancing skin permeation of bio-affecting agents Bandage for sustained delivery of drugs Transdermal absorption dosage unit for estradiol and other estrogenic steroids and process for administration Transdermal estrogen/progestin dosage unit, system and process Percutaneous-administration-type pharmaceutical preparation of nitroglycerin Transdermal absorption dosage unit for postmenopausal syndrome treatment and process for administration Patent #: 5145682 InventorsAssigneeApplicationNo. 857094 filed on 03/20/1992US Classes:424/448, Pressure sensitive adhesive means424/443, Web, sheet or filament bases; compositions of bandages; or dressings with incorporated medicaments424/449Transdermal or percutaneousExaminersPrimary: Page, Thurman K.Assistant: Horne, Leon R. Attorney, Agent or FirmInternational ClassA61F 013/02AbstractA matrix for containing drugs for transdermal delivery systems is disclosed. The matrix, formed of a skin-adhesive acrylate copolymer, attains high rates of drug delivery without the addition of drug delivery rate enhancers. In preferred embodiments the matrix is used to administer steroids, in particular estradiol. Water-soluble polymers may be added as well. | |
