AgaMatrix and sanofi-aventis Enter Global Diabetes Partnership

SALEM, New Hampshire, March 31, 2010 - AgaMatrix, Inc. and sanofi-aventis (EURONEXT: SAN and NYSE: SNY) today
announced that they have signed a long-term agreement for the development,
supply and commercialization of blood glucose monitoring (BGM) solutions.
Under the terms of the agreement, AgaMatrix and sanofi-aventis will
co-develop innovative solutions in diabetes management that incorporate
AgaMatrix's WaveSense(TM) technology. Sanofi-aventis will commercialize
through its Global Diabetes Division such integrated solutions for patients
with diabetes, along with current sanofi-aventis insulins and delivery
devices. Sanofi-aventis' insulin and device portfolio include Lantus(R), a
basal insulin that is the number one insulin prescribed worldwide, and
Apidra(R), a leading fast-acting insulin, plus its easy-to-use delivery pens
SoloSTAR(R) and ClikSTAR(R).

Sanofi-aventis selected AgaMatrix as its global BGM partner based on
AgaMatrix's accurate and innovative products in the market. Accuracy is
particularly important to patients in order to safely adjust their insulin
dose.

"In building our Global Diabetes Division, our objectives included
conducting an exhaustive search for potential partners that have excellent
core science, are highly innovative, and have the potential to develop a
broad range of products. With AgaMatrix, we've found a company that can meet
all three objectives in the BGM category," said Eric Petreto, Vice President
of Device Strategy of the sanofi-aventis Global Diabetes Division.

AgaMatrix's proprietary WaveSense technology personalizes each test to
provide world class accuracy by employing a new detection method called
dynamic electrochemistry to detect and correct for errors caused by
differences in blood samples, manufacturing variations and environmental
conditions. In addition, tests are fast, require very little blood, and do
not require coding.

"Our unwavering message to patients, health care professionals and
industry leaders has been that people with diabetes need more accurate BGMs
and that our WaveSense technology delivers high accuracy, so naturally we are
thrilled to find a partner that shares these beliefs," said Sonny Vu and
Sridhar Iyengar, Co-Founders of AgaMatrix. "With sanofi-aventis' global
presence and sterling reputation, we believe this partnership will enable us
to finally fulfill our original vision of making high accuracy blood glucose
testing easily available to patients worldwide."

About AgaMatrix:

AgaMatrix is a private company based in Salem, New Hampshire, that
invents, develops, manufactures, and markets a line of blood glucose meters,
biosensors (strips), and diabetes management software. AgaMatrix's products
are designed to improve the quality of diabetes care by using the company's
proprietary WaveSense technology to personalize each test to provide world
class accuracy. The technology employs a new detection method called dynamic
electrochemistry to detect and correct for many errors caused by differences
in blood samples and environmental conditions. Current AgaMatrix products
include the WaveSense KeyNote(TM), Presto(TM), and WaveSense Jazz(TM) BGMs,
and the WaveSense Diabetes Manager(TM) iPhone(R) App. AgaMatrix's WaveSense
line of meters and strips are covered by insurance and are available by mail
order and at popular retail outlets. For more product information, go to:
www.agamatrix.com

About sanofi-aventis:

Sanofi-aventis is a leading global pharmaceutical company that discovers,
develops and distributes therapeutic solutions to improve the lives of
everyone. Sanofi-aventis is listed in Paris (EURONEXT: SAN) and in New York
(NYSE: SNY). More information can be found on www.sanofi-aventis.com

AgaMatrix, WaveSense, KeyNote, Presto, WaveSense Jazz, and WaveSense
Diabetes Manager are trademarks of AgaMatrix, Inc. Sanofi-aventis, Lantus,
Solo STAR, ClikSTAR, Apidra, and iPhone are registered trademarks of their
respective owners.

Media, Andrew Chen of AgaMatrix, +1-603-328 6068, andrew at agamatrix.com