Study of Over 33,000 Women Comparing Two Most Prescribed Osteoporosis Treatments Shows Significant Difference in Hip Fra

Sanofi-aventis is the world's third-largest pharmaceutical company, ranking number one in Europe. Backed by a world-class R&D organisation, sanofi-aventis is developing leading positions in seven major therapeutic areas: cardiovascular, thrombosis, oncology, metabolic diseases, central nervous system, internal medicine, and vaccines. The sanofi-aventis Group is listed in Paris (EURONEXT: SAN) and in New York (NYSE: SNY).

Forward Looking Statements

For s-a: This press release contains forward-looking statements as defined in the Private Securities Litigation Reform Act of 1995. Forward-looking statements are statements that are not historical facts. These statements include financial projections and estimates and their underlying assumptions, statements regarding plans, objectives and expectations with respect to future events, operations, products and services, and statements regarding future performance. Forward-looking statements are generally identified by the words "expect," "anticipates," "believes," "intends," "estimates," "plans" and similar expressions. Although sanofi-aventis' management believes that the expectations reflected in such forward-looking statements are reasonable, investors are cautioned that forward-looking information and statements are subject to various risks and uncertainties, many of which are difficult to predict and generally beyond the control of sanofi-aventis, that could cause actual results and developments to differ materially from those expressed in, or implied or projected by, the forward-looking information and statements. These risks and uncertainties include those discussed or identified in the public filings with the SEC and the AMF made by sanofi-aventis, including those listed under "Risk Factors" and "Cautionary Statement Regarding Forward-Looking Statements" in sanofi-aventis' annual report on Form 20-F for the year ended December 31, 2005. Other than as required by applicable law, sanofi-aventis does not undertake any obligation to update or revise any forward-looking information or statements.

For P&G: All statements, other than statements of historical fact included in this release, are forward-looking statements, as that term is defined in the Private Securities Litigation Reform Act of 1995. Such statements are based on financial data, market assumptions and business plans available only as of the time the statements are made, which may become out of date or incomplete. We assume no obligation to update any forward-looking statement as a result of new information, future events or other factors. Forward-looking statements are inherently uncertain, and investors must recognise that events could differ significantly from our expectations. In addition to the risks and uncertainties noted in this release, there are certain factors that could cause actual results to differ materially from those anticipated by some of the statements made. These include: (1) the ability to achieve business plans, including with respect to lower income consumers and growing existing sales and volume profitably despite high levels of competitive activity, especially with respect to the product categories and geographical markets (including developing markets) in which the Company has chosen to focus; (2) the ability to successfully execute, manage and integrate key acquisitions and mergers, including (i) the Domination and Profit Transfer Agreement with Wella, and (ii) the Company's merger with The Gillette Company, and to achieve the cost and growth synergies in accordance with the stated goals of these transactions; (3) the ability to manage and maintain key customer relationships; (4) the ability to maintain key manufacturing and supply sources (including sole supplier and plant manufacturing sources); (5) the ability to successfully manage regulatory, tax and legal matters (including product liability, patent, and intellectual property matters as well as those related to the integration of Gillette and its subsidiaries), and to resolve pending matters within current estimates; (6) the ability to successfully implement, achieve and sustain cost improvement plans in manufacturing and overhead areas, including the Company's outsourcing projects; (7) the ability to successfully manage currency (including currency issues in volatile countries), debt, interest rate and commodity cost exposures; (8) the ability to manage continued global political and/or economic uncertainty and disruptions, especially in the Company's significant geographical markets, as well as any political and/or economic uncertainty and disruptions due to terrorist activities; (9) the ability to successfully manage competitive factors, including prices, promotional incentives and trade terms for products; (10) the ability to obtain patents and respond to technological advances attained by competitors and patents granted to competitors; (11) the ability to successfully manage increases in the prices of raw materials used to make the Company's products; (12) the ability to stay close to consumers in an era of increased media fragmentation; and (13) the ability to stay on the leading edge of innovation. For additional information concerning factors that could cause actual results to materially differ from those projected herein, please refer to our most recent 10-K, 10-Q and 8-K reports.

References:

1. Silverman S, et al. Effectiveness of bisphosphonates on non-vertebral and hip fractures in the first year of therapy, the risedronate and alendronate cohort study. Osteoporosis Int 2006

2. Roux C, Seeman E., Eastell R., Adachi J, Jackson RD, Felsenberg D, Songcharoen S, Rozzoli R, Di Munno O, Horlait S, Valent D, watts NB, Efficacy of risedronate on clinical vertebral fractures within six months. Curr Med Res Opin. 2004;20(4):433-9

3. Harrington JT, Ste-Marie LG, Brandi ML, Civitelli R, Fardellone P, Grauer A, Barton I, Boonen S. Risedronate rapidly reduces the risk for non-vertebral fractures in women with postmenopausal osteoporosis. Calcif Tissue Int. 2004; 74: 129-135 .

4. International Osteoporosis Foundation. Facts and statistics about osteoporosis and its impact. http://www.osteofound.org/press_centre/f.... Last accessed 7th November 2006

5. Johnell O. The socio-economic burden of fractures: today and in the 21st century. Am J Med 1997; 103: 20S-26

6. Cooper C, Atkinson EJ, Jacobsen SJ, et al. Population-based study of survival after osteoporotic fractures. Am J Epidemiol 1993 ; 137: 1001-1005

7. Leibson CL, Tosteson AN, Gabriel SE, et al. Mortality, disability, and nursing home use for persons with and without hip fracture: a population-based study. J Am Geriatr Soc 2002; 50: 1644-1650

8. Magaziner J, Simonsick EM, Kashner TM, et al. Predictors of functional recovery one year following hospital discharge for hip fracture: a prospective study. J Gerontol 1990; 45: M101-M107

9. Melton LJ et al. Perspective. How many women have osteoporosis? J Bone Miner Res 1992; 7: 1005-1010

10. Kanis J A. Diagnosis of osteoporosis and assessment of fracture risk. Lancet 2002; 359: 1929-36

For further information please contact: Helen Crow, Tel: +44-207-611-3654, Email: helen.crow@ketchum.com. Vicki Norgan, Tel: +44-207-611-3566, Email: vicki.norgan@ketchum.com