1 Exhibit 21.01 SUBSIDIARIES OF THE REGISTRANT ------------------------------ NAME OF SUBSIDIARY STATE OF INCORPORATION - - ------------------ ---------------------- I. CDI Investments, Inc. Delaware II. Ellicott Drug Company New York III. Cardinal Syracuse, Inc. New York IV. Bailey Drug Company Delaware V. James W. Daly, Inc. Massachusetts VI. Marmac Distributors, Inc. Connecticut VII. Cardal, Inc. Ohio VIII. National PharmPak Services, Inc. Ohio IX. Phillipi Holdings, Inc. Ohio X. Cardinal Health Systems, Inc. Ohio XI. Ohio Valley-Clarksburg, Inc. Delaware XII. Chapman Drug Company Tennessee XIII. National Specialty Services, Inc. Tennessee XIV. Leader Drugstores, Inc. Delaware XV. Solomons Company Georgia XVI. Cardinal West, Inc. Nevada XVII. Cardinal Florida, Inc. Florida XVIII. Cardinal Mississippi, Inc. Mississippi XIX. PRN Services, Inc. Michigan XX. Whitmire Distribution Corporation Delaware 2 Exhibit 21.01 SUBSIDIARIES OF THE REGISTRANT ------------------------------ NAME OF SUBSIDIARY STATE OF INCORPORATION - - ------------------ ---------------------- XXI. Medical Strategies, Inc. Massachusetts XXII. Humiston-Keeling, Inc. Illinois XXIII. Behrens Inc. Texas