CHATSWORTH, Calif.--(BUSINESS WIRE)--Plethico Pharmaceuticals Limited (“Plethico”) today announced that it has completed its acquisition of Natrol, Inc. (Nasdaq: NTOL). The acquisition was completed in accordance with the merger agreement announced last month among Plethico, Nutra Acquisition Company, Inc. (“MergerSub”), a wholly owned subsidiary of Plethico, and Natrol, by means of the merger of Natrol with MergerSub following a successful tender offer for Natrol’s common shares.