EXHIBIT 23.1 INDEPENDENT AUDITORS' CONSENT We consent to the incorporation by reference in Registration Statements (Nos. 33-35941, 33-43868, 33-43866, 33-45994, 33-45142, 33-54382, 33-69946, 33-75088 and 333-28593) of Bentley Pharmaceuticals, Inc. and subsidiaries (the "Company") on Form S-3 and the Registration Statement No. 33-85154 of the Company on Form S-8 of our reports dated March 26, 1999, appearing in the Annual Report on Form 10-K of the Company for the year ended December 31, 1998. /s/ DELOITTE & TOUCHE LLP DELOITTE & TOUCHE LLP Tampa, Florida March 26, 1999 E-1