1 EXHIBIT 23(b) CONSENT OF ERNST AND YOUNG LLP, INDEPENDENT AUDITORS We consent to the incorporation by reference in this Registration Statement of Cardinal Health, Inc. (the "Company") on Form S-8 of our report, with respect to the consolidated financial statements of Pyxis Corporation (not presented) dated August 2, 1996, appearing in the Company's Current Report on Form 8-K/A dated September 28, 1998. /s/ Ernst & Young LLP ERNST & YOUNG LLP San Diego, California February 1, 1999