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 over-the-counter (OTC) pain reliever, Cobroxin, will be available for purchase in Walgreens by May 1, 2010. Walgreens is considered one of the nation’s largest pharmacy chains with 7,162 drugstores located throughout the United States.