Percutaneous absorption enhancer dispenser for use in coadministering drug and percutaneous absorption enhancer
Patent 4460372 Issued on July 17, 1984. Estimated Expiration Date: 
April 1, 2003. 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.
April 1, 2003. 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 3731683 3797494 Method and therapeutic system for providing chemotherapy transdermally Inert core implant pellet Transdermal delivery of drugs Therapeutic system for administering drugs to the skin Polymeric diffusion matrix containing estradiol diacetate Patent #: 4291014 InventorsAssigneeApplicationNo. 06/481209 filed on 04/01/1983US Classes:424/449Transdermal or percutaneousExaminersPrimary: Padgett, Benjamin R.Assistant: Wallen, T. J. Attorney, Agent or FirmInternational ClassesA61K 9/70 (20060101)A61M 37/00 (20060101) AbstractA dosage form that coadministers a drug and a percutaneous absorption enhancer to a defined area of the skin. The dosage form comprises a body that contains supplies of drug and enhancer and has a basal surface that contacts the area of skin and transmits the drug and enhancer to the area for absorption thereby. The drug is provided to the basal surface at a rate at least as great as the rate at which the skin is able to absorb the drug whereas the enhancer is via a rate controlling means at a substantially constant rate that increases the permeability of the treated area of skin to the drug to a level at which the drug is absorbed a therapeutically effective rate. | |
