Exhibit 24.2








                         Consent of Independent Auditors



We consent to the  incorporation  by reference in  Registration  Statements  No.
333-45057 on Form S-3 dated  February 4, 1998,  No.  333-28783 on Form S-3 dated
October 8, 1997, No. 333-24371 on Form S-8 dated April 2, 1997, No. 333-18547 on
Form S-3 dated  February 14, 1997,  No.  333-827 on Form S-3 dated May 15, 1996,
No. 33-89646 on Form S-8 dated February 21, 1995, No. 33-91840 on Form S-3 dated
July 21, 1995, No. 33-86744 on Form S-3 dated December 13, 1994, No. 33-78590 on
Form S-3 dated June 20, 1994,  No.  33-74078 on Form S-3 dated February 2, 1994,
No. 33-71490 on Form S-8 dated November 11, 1993, No. 33-71596 on Form S-8 dated
November 11, 1993, No. 33-49474 on Form S-8 dated July 10, 1992, No. 33-48566 on
Form S-3 dated June 25, 1992,  No.  33-15025 on Form S-8 dated June 29, 1987 and
No 33-10393 on Form S-8 dated  December 16, 1986 of our report dated February 6,
1998,  with respect to the  consolidated  financial  statements  and schedule of
Medtox Scientific,  Inc.  (formerly EDITEK,  Inc.) included in the Annual Report
(Form 10-K) for the year ended December 31, 1998.

                                                      /s/ Ernst & Young LLP

Minneapolis, Minnesota
April 12, 1999