NEW YORK--(BUSINESS WIRE)--Synergy Pharmaceuticals, Inc. (Nasdaq: SGYPD, SGYPU), a developer of new drugs to treat gastrointestinal disorders and diseases, announced the full exercise of the over-allotment option granted to the underwriters to purchase 281,250 additional units, at a public offering price of $8.00 per unit, in connection with its previously announced underwritten public offering of 1,875,000 units, bringing total gross proceeds from the offering to $17,250,000.