In rare instances, men taking PDE5 inhibitors (oral erectile dysfunction medicines, including STENDRA) reported a sudden decrease or loss of vision. It is not possible to determine whether these events are related directly to these medicines or to other factors. If you experience sudden decrease or loss of vision, stop taking PDE5 inhibitors, including STENDRA, and call a doctor right away.

Sudden decrease or loss of hearing has been rarely reported in people taking PDE5 inhibitors, including STENDRA. It is not possible to determine whether these events are related directly to the PDE5 inhibitors or to other factors. If you experience sudden decrease or loss of hearing, stop taking STENDRA and contact a doctor right away. If you have prostate problems or high blood pressure for which you take medicines called alpha blockers or other anti-hypertensives, your doctor may start you on a lower dose of STENDRA.

Drinking too much alcohol when taking STENDRA may lead to headache, dizziness, and lower blood pressure.

STENDRA in combination with other treatments for ED is not recommended.

STENDRA does not protect against sexually transmitted diseases, including HIV.

The most common side effects of STENDRA are headache, flushing, runny nose and congestion.

Please see full patient prescribing information for STENDRA (50 mg, 100 mg, 200 mg) tablets.

About VIVUS

VIVUS is a biopharmaceutical company commercializing and developing innovative, next-generation therapies to address unmet needs in obesity and sexual health. For more information about the company, please visit www.vivus.com .

Forward Looking Statements

This letter contains "forward looking" statements that involve risks and uncertainties. These statements typically may be identified by the use of forward looking words or phrases such as "may," "believe," "expect," "forecast," "intend," "anticipate," "predict," "should," "planned," "likely," "opportunity," "estimated," and "potential," the negative use of these words or other similar words. All forward looking statements included in this document are based on our current expectations, and we assume no obligation to update any such forward looking statements. The Private Securities Litigation Reform Act of 1995 provides a "safe harbor" for such forward looking statements. In order to comply with the terms of the safe harbor, we note that a variety of factors could cause actual results and experiences to differ materially from the anticipated results or other expectations expressed in such forward looking statements. The risks and uncertainties that may affect the operations, performance, development, and results of our business include but are not limited to: (1) our limited commercial experience with Qsymia® in the United States, or U.S.; (2) the timing of initiation and completion of the clinical studies required as part of the approval of Qsymia by the U.S. Food and Drug Administration, or FDA; (3) the response from the FDA to the data that VIVUS will submit relating to post-approval clinical studies; (4) the impact of the indicated uses and contraindications contained in the Qsymia label and the Risk Evaluation and Mitigation Strategy, or REMS, requirements; (5) the impact of distribution of Qsymia through a certified home delivery pharmacy network; (6) our ability to implement the recently FDA approved amendment to the REMS for Qsymia, which, allows dispensing through certified retail pharmacies; (7) that we may be required to provide further analysis of previously submitted clinical trial data; (8) the negative opinion of the European Medicines Agency's, or EMA, Committee for Medicinal Products for Human Use, or CHMP, for the Marketing Authorization Application, or MAA, for Qsymia; (9) our ability to successfully commercialize Qsymia or establish a marketing partnership for avanafil; (10) the ability of our partners to maintain regulatory approvals to manufacture and adequately supply our products to meet demand; (11) our history of losses and variable quarterly results; (12) substantial competition; (13) risks related to the failure to protect our intellectual property and litigation in which we may become involved; (14) uncertainties of government or third party payor reimbursement; (15) our reliance on sole source suppliers; (16) our reliance on third parties and our collaborative partners; (17) our failure to continue to develop innovative investigational drug candidates and drugs; (18) risks related to the failure to obtain FDA or foreign authority clearances or approvals and noncompliance with FDA or foreign authority regulations; (19) our ability to demonstrate through clinical testing the safety and effectiveness of our investigational drug candidates; (20) the timing of initiation and completion of clinical trials and submissions to foreign authorities; (21) the results of post-marketing studies are not favorable; (22) compliance with post-marketing regulatory standards is not maintained; (23) the volatility and liquidity of the financial markets; (24) our liquidity and capital resources; (25) our expected future revenues, operations and expenditures and (26) other factors that are described from time to time in our periodic filings with the Securities and Exchange Commission, or the SEC, including the Form 10-K for the year ended December 31, 2012, filed with the SEC on February 26, 2013, as amended by the Form 10-K/A filed on April 30, 2013.

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