Indevus Pharmaceuticals, Inc. To Announce First Quarter Fiscal 2008 Financial Results On Thursday, February 7, 2008 Company to Conduct Conference Call and Webcast

LEXINGTON, Mass., Jan. 31 /PRNewswire-FirstCall/ -- Indevus Pharmaceuticals, Inc. will announce its first quarter fiscal 2008 financial results in a press release to be issued before market open on Thursday, February 7, 2008. The Company will host a conference call and webcast to discuss these results at 9:00 AM eastern time on Thursday, February 7, 2008.

The live call may be accessed by dialing 888-680-0893 from the U.S. and Canada, and 617-213-4859 from international locations. The participant passcode is 93441269. Investors are advised to dial into the call at least ten minutes prior to the call to register. Participants may pre-register for the call at https://www.theconferencingservice.com/prereg/key.process?key=PWJFVJ69C. Pre- registrants will be issued a pin number to use when dialing into the live call which will provide quick access to the conference by bypassing the operator upon connection. A replay of the call will be available beginning at 11:00 AM on February 7, 2008 and lasting until 12:00 AM on March 7, 2008. 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 15551448.

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 An archived version of the call will be accessible at the same web address for 30 days following the live call.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 XR(TM) and SANCTURA(R) for overactive bladder, VANTAS(R) for advanced prostate cancer, SUPPRELIN(R) LA for central precocious puberty, and DELATESTRYL(R) to treat male hypogonadism. 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, VALSTAR(TM) for bladder cancer, NEBIDO(R) for male hypogonadism, PRO 2000 for the prevention of infection by HIV and other sexually-transmitted pathogens, octreotide for acromegaly, 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, SANCTURA XR, NEBIDO, VANTAS and SUPPRELIN LA; effectiveness of our sales force; competition and its effect on pricing, spending, third-party relationships and revenues; dependence on third parties for supplies, particularly for histrelin, manufacturing, marketing, and clinical trials; risks associated with being a manufacturer of some of our products; risks associated with contractual agreements, particularly for the manufacture and co-promotion of SANCTURA and SANCTURA XR and the manufacture of NEBIDO, VANTAS, SUPPRELIN LA and VALSTAR; reliance on intellectual property and having limited patents and proprietary rights; dependence on market exclusivity, changes in reimbursement policies and/or rates for SANCTURA, SANCTURA XR, VANTAS, SUPPRELIN LA, DELATESTRYL and any future products; acceptance by the healthcare community of our approved products and product candidates; uncertainties relating to clinical trials, regulatory approval and commercialization of our products, particularly SANCTURA XR, NEBIDO, and VALSTAR; product liability and insurance uncertainties; risks relating to the Redux-related litigation; need for additional funds and corporate partners, including for the development of our products; history of operating losses and expectation of future losses; uncertainties relating to controls over financial reporting; difficulties in managing our growth; valuation of our Common Stock; risks related to repayment of debts; risks related to increased leverage; general worldwide economic conditions and related uncertainties; 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, 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.

Web site: http://www.indevus.com/

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