DELRAY BEACH, Fla.--(BUSINESS WIRE)--XenaCare Holdings, Inc. (OTCBB: XCHO), a company specializing in the marketing and retail distribution of consumer healthcare products, has announced today that its award winning over-the-counter (OTC) pain reliever, Cobroxin Advanced Topical Gel, is now available at Duane Reade drugstores located throughout metropolitan New York. Duane Reade currently operates 253 stores in Manhattan.