Local anesthetic mixture for topical application, process for its preparation, as well as method for obtaining local anesthesia
Patent 4562060 Issued on December 31, 1985. Estimated Expiration Date: 
February 11, 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.
February 11, 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 ReferencesInventorsAssigneeApplicationNo. 06/684458 filed on 02/11/1985US Classes:424/443, Web, sheet or filament bases; compositions of bandages; or dressings with incorporated medicaments424/47, Topical live body grooming or adorning aid (e.g., hair spray, antiperspirant, etc.)424/49, DENTIFRICES (INCLUDES MOUTH WASH)424/65ANTI-PERSPIRANTS OR PERSPIRATION DEODORANTSExaminersPrimary: Ore, Dale R.Attorney, Agent or FirmInternational ClassesA61K 31/21 (20060101)A61K 31/165 (20060101) A61K 31/245 (20060101) A61K 31/445 (20060101) Foreign Application Priority Data1977-12-01 SEAbstractThe present invention relates to pharmacological active preparations, especially local anesthetic preparations and deals with the problem of i a obtaining a solution of a local anesthetic agent in the form of its base, where the concentration is higher than otherwise possible. This problem has been dissolved according to the present invention thereby that one local anesthetic agent in the form of its base and as such having a melting point of 30° to 50° C., preferably prilocaine or tetracaine, is provided with one other local anesthetic agent in the form of its base and as such having a melting point of above 30° C., preferably above 40° C., preferably bensocaine, lidocaine, bupivacaine, mepivacaine, etidocaine or tetracaine which agents when brought and heated together form a homogenous oil having a melting of preferably below 40° C., more preferably below 25° C. | |
