HAYWARD, Calif.--(BUSINESS WIRE)--IMPAX Laboratories, Inc. (OTC:IPXL) today announced that its distributor DAVA Pharmaceuticals will reinitiate sales of a limited amount of the Company’s generic versions of Purdue Pharma’s OxyContin® (oxycodone hydrochloride extended release) Tablets on November 27, 2007. Sales are expected to continue until the earlier of January 28, 2008, or the Company’s sales quota under a previously negotiated license agreement has been fulfilled.