Polymeric diffusion matrix containing terbutaline
Patent 4292302 Issued on September 29, 1981. Estimated Expiration Date: 
July 9, 2000. 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.
July 9, 2000. 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 ReferencesInventorsAssigneeApplicationNo. 06/167104 filed on 07/09/1980US Classes:514/646, Benzene ring containing424/486Synthetic polymerExaminersPrimary: Rose, Shep K.Attorney, Agent or FirmInternational ClassesA61K 31/135 (20060101)A61K 9/70 (20060101) A61K 31/415 (20060101) A61K 31/565 (20060101) Foreign Application Priority Data1979-08-14 JPAbstractThere is disclosed a polymeric diffusion matrix for the sustained release of terbutaline by transdermal delivery to a patient wherein the matrix comprises a polar plasticizer, polyvinylalcohol, polyvinylpyrrolidone, and a pharmaceutically effective amount of terbutaline. | |
