LAKE FOREST, Ill.--(BUSINESS WIRE)--Akorn, Inc. (NASDAQ:AKRX) a niche generic pharmaceutical company, today announced that the U.S. Food and Drug Administration (FDA) has granted approval of the Company’s Erythromycin Ophthalmic Ointment USP 1 g as a supplement to the Company’s already approved Abbreviated New Drug Application (ANDA) for Erythromycin Ophthalmic Ointment USP 3.5 g. The company has begun shipping the product to its customers.