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DUSA Pharmaceutials to Present at the Friedman, Billings, Ramsey & Co., Inc. 2007 Growth Conference

For release at 8:00 a.m.

DUSA PHARMACEUTICALS TO PRESENT AT THE
FRIEDMAN, BILLINGS, RAMSEY & CO., INC. 2007 GROWTH CONFERENCE

Wilmington, MA. May 25, 2007 - DUSA Pharmaceuticals, Inc. (NASDAQ GM: DUSA) announced today that it will present at the Friedman, Billings, Ramsey & Co., Inc. 2007 Growth Conference. The presentation is scheduled for 3:50 p.m. EDT on Wednesday, May 30th at the Grand Hyatt Hotel in New York, NY.

The presentation will be available as a live audio and visual webcast on the Company's website at www.dusapharma.com or at http://www.wsw.com/webcast/fbr19/dusa/. A replay of this presentation will be available on these websites.

About DUSA

DUSA Pharmaceuticals, Inc. is an integrated dermatology pharmaceutical company focused primarily on the development and marketing of its Levulan® Photodynamic Therapy (PDT) technology platform, and complementary dermatology products. Levulan PDT is currently indicated for the treatment of minimally to moderately thick actinic keratoses (Grade 1 or 2) of the face or scalp, and is being studied for the treatment of acne. DUSA's other dermatology products include ClindaReach^TM, Nicomide® and the AVAR® line. DUSA is also sponsoring research for additional indications for internal uses of Levulan PDT. DUSA is based in Wilmington, MA. Please visit the company's website at www.dusapharma.com for more information.

For further information contact:
Shari Lovell, Director, Shareholder Services
Tel: 416.363.5059 Fax 416.363.6602 or visit www.dusapharma.com