Indevus Pharmaceuticals, Inc. to Announce Third Quarter Fiscal 2007 Financial Results on August 7, 2007

LEXINGTON, Mass., July 31 /PRNewswire-FirstCall/ -- Indevus Pharmaceuticals, Inc. will announce its third quarter 2007 financial results in a press release to be issued before market open on August 7, 2007. The Company will host a conference call and webcast to discuss these results at 9:00 AM eastern time on August 7, 2007.

The live call may be accessed by dialing 800-901-5226 from the U.S. and Canada, and 617-786-4513 from international locations. The participant passcode is 37850728. A replay of the call will be available beginning at 11:00 AM on August 7, 2007 and lasting until 12:00 AM on September 8, 2007. To access the replay, please dial 888-286-8010 from the U.S. and Canada, and 617-801-6888 from international locations, using the passcode 78843472. The press release and the live webcast will be accessible by visiting the Investors section of the Company’s website, http://www.indevus.com . An archived version of the call will be accessible at the same web address for 30 days following the live call.

About Indevus

Indevus Pharmaceuticals, Inc. is a specialty pharmaceutical company engaged in the acquisition, development and commercialization of products to treat conditions in urology and endocrinology. The Company’s approved products include SANCTURA(R) for overactive bladder, VANTAS(R) for advanced prostate cancer, DELATESTRYL(R) to treat male hypogonadism, and SUPPRELIN(R) LA, for central precocious puberty. The Indevus development pipeline contains multiple compounds within the Company’s core therapeutic areas in addition to several partnered or partnerable programs. The most advanced compounds in development include SANCTURA XR(TM), the once-daily formulation of SANCTURA, VALSTAR(R) for bladder cancer, NEBIDO(R) for male hypogonadism, PRO 2000 for the prevention of infection by HIV and other sexually-transmitted pathogens, and pagoclone for stuttering.

Forward Looking Statements

Except for the descriptions of historical facts contained herein, this press release contains forward-looking statements that involve risks and uncertainties that could cause the Company’s actual results and financial condition to differ materially from those anticipated by the forward-looking statements. These risks and uncertainties are set forth in the Company’s filings under the Securities Act of 1933 and the Securities Exchange Act of 1934 under “Risk Factors” and elsewhere, and include, but are not limited to: dependence on the success of SANCTURA(R), SANCTURA XR(TM), NEBIDO(R) , VANTAS(R) and SUPPRELIN(R) LA; the early state of products under development; uncertainties relating to clinical trials, regulatory approval and commercialization of our products, particularly SANCTURA XR, NEBIDO, VANTAS , SUPPRELIN LA and VALSTAR(R); risks associated with contractual agreements, particularly for the manufacture and co-promotion of SANCTURA and SANCTURA XR and the manufacture of NEBIDO, VANTAS and VALSTAR; dependence on third parties for supplies, particularly for histrelin, manufacturing, marketing, and clinical trials; competition; need for additional funds and corporate partners, including for the development of our products; failure to acquire and develop additional product candidates; changes in reimbursement policies and/or rates for SANCTURA, VANTAS, DELATESTRYL and any future products; history of operating losses and expectation of future losses; product liability and insurance uncertainties; risks relating to the Redux-related litigation; the risk that the businesses of Indevus and Valera Pharmaceuticals, Inc. will not be integrated successfully during the period following the related merger; the risk that the cost savings and any other synergies from the merger may not be fully realized or may take longer to realize than expected; market acceptance for the merger and approved products; risks of regulatory review and clinical trials; disruption from the transaction making it more difficult to maintain relationships with customers, employees or suppliers; competition and its effect on pricing, spending, third-party relationships and revenues; reliance on intellectual property and having limited patents and proprietary rights; dependence on market exclusivity, valuation of our Common Stock; risks related to repayment of debts; risks related to increased leverage; general worldwide economic conditions and related uncertainties; the effect of changes in governmental regulations and other risks. Indevus undertakes no obligation to publicly update any forward-looking statement, whether as a result of new information, future events or otherwise.

Contact: Michael W. Rogers Brooke D. Wagner Executive Vice President and CFO VP, Corp. Communications (781) 861-8444 (781) 402-3410

Indevus Pharmaceuticals, Inc.

CONTACT: Michael W. Rogers, Executive Vice President and CFO,+1-781-861-8444, or Brooke D. Wagner, VP, Corp. Communications,+1-781-402-3410, both of Indevus Pharmaceuticals, Inc.

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