Exhibit 99.1

The undersigned agree that this Amendment No. 1 to Schedule 13D, and all amendments to the Schedule 13D, relating to the Ordinary Shares of Flamel Technologies shall be filed on behalf of the undersigned.

DEERFIELD CAPITAL, L.P.
By:	J.E. Flynn Capital LLC, General Partner
By:	/s/ Darren Levine
	Darren Levine, Attorney-In-Fact

DEERFIELD SPECIAL SITUATIONS FUND, L.P.
By:	Deerfield Capital, L.P., General Partner
By:	J.E. Flynn Capital LLC, General Partner
By:	/s/ Darren Levine
	Darren Levine, Attorney-In-Fact

DEERFIELD PRIVATE DESIGN FUND II, L.P.
By:	Deerfield Capital, L.P., General Partner
By:	J.E. Flynn Capital LLC, General Partner
By:	/s/ Darren Levine
	Darren Levine, Attorney-In-Fact

DEERFIELD PRIVATE DESIGN INTERNATIONAL II, L.P.
By:	Deerfield Capital, L.P., General Partner
By:	J.E. Flynn Capital LLC, General Partner
By:	/s/ Darren Levine
	Darren Levine, Attorney-In-Fact

DEERFIELD MANAGEMENT COMPANY, L.P.
By:	Flynn Management LLC, General Partner
By:	/s/ Darren Levine
	Darren Levine, Attorney-In-Fact

DEERFIELD SPECIAL SITUATIONS FUND INTERNATIONAL LIMITED
By:	/s/ Darren Levine
	Darren Levine, Attorney-In-Fact
JAMES E. FLYNN
/s/ Darren Levine
Darren Levine, Attorney-in-Fact