About BioSante Pharmaceuticals, Inc.BioSante’s corporate strategy is to develop high value medically-needed pharmaceutical products and to implement strategic alternatives with respect to its products and its company, including licenses, business collaborations and other business combinations or transactions with other pharmaceutical and biotechnology companies. BioSante’s products include LibiGel ® (transdermal testosterone gel) for the treatment of female sexual dysfunction (FSD), specifically hypoactive sexual desire disorder (HSDD), which is in Phase III development. BioSante also is developing a portfolio of cancer vaccines, with 17 Phase I and Phase II clinical trials currently on-going. Four of these vaccines have been granted Orphan Drug designation by the U.S. Food and Drug Administration (FDA). BioSante’s other products include an FDA-approved testosterone gel for male hypogonadism, which is licensed to Teva Pharmaceuticals USA, Inc., and the Pill-Plus™, an oral contraceptive in Phase II clinical development by Pantarhei Bioscience B.V. BioSante’s first FDA-approved product, Elestrin™ (estradiol gel) indicated for the treatment of hot flashes associated with menopause, is marketed in the U.S. by Meda Pharmaceuticals, BioSante’s licensee. About ANI Pharmaceuticals, Inc. ANI Pharmaceuticals is a fully integrated specialty branded and generic pharmaceutical company developing, manufacturing, and marketing branded and generic prescription pharmaceuticals. In two facilities with combined manufacturing, packaging and laboratory capacity totaling 173,000 square feet, ANI manufactures oral solid dose products, as well as liquids and topicals, including narcotics and those that must be manufactured in a fully contained environment due to their potency and/or toxicity. ANI also performs contract manufacturing for other pharmaceutical companies. Over the last two years ANI has launched three new products and has 11 products in development targeting markets with current sales of approximately $775 million. ANI’s targeted areas of product development include narcotics, anti-cancers and hormones (potent compounds), and extended release niche generic Rx product opportunities. For more information, please visit www.anipharmaceuticals.com. Forward-Looking Statements To the extent any statements made in this news release deal with information that is not historical, these are forward-looking statements under the Private Securities Litigation Reform Act of 1995. Such statements include, but are not limited to, statements about the proposed transaction between BioSante and ANI, the terms, timing, conditions to and anticipated completion of the proposed transaction, the expected ownership of the combined company and the composition of the combined company’s board of directors and management team; the anticipated distribution to BioSante stockholders of contingent value rights (CVRs) immediately prior to the merger and the terms, timing and value of such CVRs, the potential benefits of the proposed transaction to the BioSante and ANI stockholders, the combined company’s plans, objectives, expectations and intentions with respect to future operations and products, the anticipated financial position, operating results and growth prospects of the combined company and other statements that are not historical in nature, particularly those that utilize terminology such as “will,” “expects,” “plans,” “potential,” “future,” “believes,” “intends,” “continue,” other words of similar meaning, derivations of such words and the use of future dates. Forward-looking statements by their nature address matters that are, to different degrees, uncertain. Uncertainties and risks may cause BioSante’s and the combined company’s actual results to be materially different than those expressed in or implied by such forward-looking statements. Particular uncertainties and risks include, among others, the failure of the BioSante or ANI stockholders to approve the transaction, the risk that BioSante’s net cash at closing will be lower than currently anticipated or the failure of either party to meet the other conditions to the closing of the transaction; delays in completing the transaction and the risk that the transaction may not be completed at all; the failure to realize the anticipated benefits from the transaction or delay in realization thereof; the businesses of BioSante and ANI may not be combined successfully, or such combination may take longer, be more difficult, time-consuming or costly to accomplish than expected; operating costs and business disruption during the pendency of and following the transaction, including adverse effects on employee retention and on business relationships with third parties; the risk that the CVRs may not be distributed prior to the completion of the merger or at all or may not be paid out or result in any value to BioSante’s stockholders; general business and economic conditions; the combined company’s need for and ability to obtain additional financing; the difficulty of developing pharmaceutical products, obtaining regulatory and other approvals and achieving market acceptance; the marketing success of BioSante’s and the combined company’s licensees or sublicensees. More detailed information on these and additional factors that could affect BioSante´s actual results are described in BioSante´s filings with the Securities and Exchange Commission, including its most recent quarterly report on Form 10-Q. All forward-looking statements in this news release speak only as of the date of this news release and are based on BioSante´s current beliefs and expectations. BioSante undertakes no obligation to update or revise any forward-looking statement, whether as a result of new information, future events or otherwise. Important Additional Information for Investors and Stockholders This communication is being made in respect of the proposed merger between BioSante and ANI and related matters involving BioSante and ANI. In connection with the proposed transaction, BioSante has filed with the SEC and the SEC has declared effective a registration statement on Form S-4, containing a joint proxy statement/prospectus and other relevant materials. The final definitive joint proxy statement/prospectus is in the process of being sent to the stockholders of BioSante and ANI. Investors and security holders are urged to read the joint proxy statement/prospectus (including any amendments or supplements) and other documents filed with the SEC carefully in their entirety because they contain important information about BioSante, ANI and the proposed transaction. Investors and security holders may obtain free copies of the registration statement and the joint proxy statement/prospectus and other documents filed with the SEC by BioSante at the SEC’s web site at www.sec.gov. Free copies of the registration statement and the joint proxy statement/prospectus and other documents filed with the SEC also can be obtained by directing a request to BioSante, Attention: Investor Relations, telephone: (847) 478-0500. In addition, investors and security holders may access copies of the documents filed with the SEC by BioSante on BioSante’s website at www.biosantepharma.com. BioSante and its directors and executive officers and other persons may be deemed to be participants in the solicitation of proxies in respect of the proposed transaction described in this release. Information regarding BioSante’s directors and executive officers is available in BioSante’s annual report on Form 10-K for the year ended December 31, 2011, which was filed with the SEC on March 13, 2012 and BioSante’s definitive proxy statement for its 2012 annual meeting of stockholders, which was filed with the SEC on April 9, 2012. If and to the extent that any of the BioSante participants will receive any additional benefits in connection with the proposed transaction that are unknown as of the date of this release, the details of those benefits will be described in the definitive joint proxy statement/prospectus relating to the proposed transaction. Investors and stockholders can obtain more detailed information regarding the direct and indirect interests of BioSante’s directors and executive officers in the proposed transaction by reading the definitive joint proxy statement/prospectus.