Compositions and method of controlling transdermal penetration of topical and systemic agents
Patent 4692462 Issued on September 8, 1987. Estimated Expiration Date: 
March 18, 2005. 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.
March 18, 2005. 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 ReferencesInventorAssigneeApplicationNo. 06/713068 filed on 03/18/1985US Classes:424/444, Resorbable by the body424/78.12, Adsorbate or treating agent contains nitrogen514/653Hydroxy, bonded directly to carbon, attached directly or indirectly to the acyclic carbon or chain by acyclic nonionic bonding (e.g., beta hydroxy phenethylamines, etc.)ExaminersPrimary: Rose, Shep K.Attorney, Agent or FirmInternational ClassesA61K 9/70 (20060101)A61K 47/48 (20060101) AbstractCompositions and methods useful for improved and controlled transdermal and transmembrane drug delivery of topical and systemic agents. The compositions and methods comprise a pharmacologically active drug together with a non-toxic pharmaceutically acceptable ion exchange resin, and a salt in a gel-forming vehicle and topically administering to human or animal skin or other membranes the resulting compositions. If desired, a penetration enhancer may also be employed in the compositions of this invention. | |
