1 EXHIBIT 23.1 CONSENT OF ERNST & YOUNG INDEPENDENT CHARTERED ACCOUNTANTS We consent to the reference to our firm under the caption "Experts" and to the use of our reports dated February 6, 1998, in the Registration Statement (Form F-1) and related Prospectus of CliniChem Development Inc. for the registration of Class A Common Shares. /s/ ERNST & YOUNG Ernst & Young Montreal, Canada June 3, 1998