PARSIPPANY, N.J.--(BUSINESS WIRE)--Pacira Pharmaceuticals, Inc. (Nasdaq: PCRX) today announced that it has commenced an underwritten public offering of shares of its common stock. All of the shares in the offering are to be sold by Pacira. Jefferies & Company, Inc. and Barclays Capital Inc. are acting as joint book-running managers for the offering. Piper Jaffray & Co., Wedbush PacGrow Life Sciences and Brean Murray, Carret & Co. are acting as co-managers for the offering. Pacira intends to grant the underwriters a 30-day option to purchase up to an additional 15 percent of the shares of common stock sold in the offering to cover over-allotments, if any. The offering is subject to market and other conditions, and there can be no assurance as to whether or when the offering may be completed, or as to the actual size or terms of the offering.