Exhibit 23 INDEPENDENT AUDITORS' CONSENT We consent to the incorporation by reference in Registration Statement No. 33-32465 of Bergen Brunswig Corporation on Form S-8 of our report dated March 22, 1999, appearing in this Annual Report on Form 11-K of Bergen Brunswig Pre-Tax Investment Retirement Account for the year ended September 29, 1998. /s/ Deloitte & Touche LLP Costa Mesa, California March 26, 1999 21