ViroPharma Incorporated and Lev Pharmaceuticals, Inc. Receive Hart-Scott-Rodino Clearance from the Federal Trade Commission

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EXTON, Pa.--(BUSINESS WIRE)--ViroPharma Incorporated (Nasdaq: VPHM) and Lev Pharmaceuticals, Inc. (OTCBB: LEVP) today announced that the waiting period required under the Hart-Scott-Rodino (HSR) Antitrust Improvements Act has expired in connection with ViroPharmas proposed acquisition of Lev Pharmaceuticals.