Transdermal delivery of enantiomers of phenylpropanolamine
Patent 4818541 Issued on April 4, 1989. Estimated Expiration Date: 
August 19, 2007. 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.
August 19, 2007. 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 ReferencesPolymeric diffusion matrix containing ephedrine Polymeric diffusion matrix containing phenylephrine Method of treating migraine headaches Patent #: 4532244 InventorAssigneeApplicationNo. 07/087848 filed on 08/19/1987US Classes:424/448, Pressure sensitive adhesive means424/449Transdermal or percutaneousExaminersPrimary: Page, Thurman K.Assistant: Horne, Leon R. Attorney, Agent or FirmInternational ClassesA61K 9/70 (20060101)A61K 31/135 (20060101) AbstractA method of inducing anorexia or nasal decongestion comprising transdermally administering an enantiomer of phenylpropanolamine is disclosed.Other References
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