1 Exhibit 23(b) INDEPENDENT AUDITORS' CONSENT We consent to the incorporation by reference in this Registration Statement of Cardinal Health, Inc. on Form S-8 filed as Post Effective Amendment No. 1 to Registration Statement No. 333-56655 on Form S-4 of our report dated October 31, 1997, appearing in the Annual Report on Form 10-K of Bergen Brunswig Corporation for the fiscal year ended September 30, 1997. /s/ Deloitte & Touche LLP Costa Mesa, California August 10, 1998