Topical medicament preparations
Patent 4411893 Issued on October 25, 1983. Estimated Expiration Date: 
September 24, 2002. 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.
September 24, 2002. 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.InventorsApplicationNo. 06/422891 filed on 09/24/1982US Classes:514/29, The hetero ring has exactly 13 ring carbons (e.g., erythromycin, etc.)514/152, 3,10-dihydroxy-2-naphthacene carboxamide or derivative (e.g., tetracycline, etc.) DOAI514/179, Modified C-ring (except methyl in 13-position) (e.g., double bond containing, substituted, etc.)514/274, Chalcogen bonded directly to pyrimidine at 2-position514/652, Alkanol group only between the amino nitrogen and an ether oxygen which is bonded directly to the aryl ring or aryl ring system (i.e., aryloxy alkanol amines)514/714, Peroxide DOAI514/788, Nitrogen containing514/947, Topical application514/975CHARACTERIZED BY THE DESIGNATED SURFACTANT USEDExaminersPrimary: Rosen, SamAttorney, Agent or FirmInternational ClassesA61K 47/18 (20060101)A61K 47/22 (20060101) A61K 47/16 (20060101) AbstractTopical therapeutic compositions are disclosed which contain from about 0.1 to 70 percent by weight of a water-soluble tertiary amine oxide and a therapeutic agent selected from the group consisting of erythromycin, benzoyl peroxide, hydrocortisone, tetracycline, 5-fluorouracil, and propranolol. The amine oxide enhances penetration of the therapeutic agent into and through the skin.Other References
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