(19)

(11)

EP 1 608 342 A2

(12)

(88) Date of publication A3: 02.12.2004 (43) Date of publication: 28.12.2005 Bulletin 2005/52 (21) Application number: 04721960.5 (22) Date of filing: 19.03.2004

(51) International Patent Classification (IPC)7: A61K 9/20, A61K 31/53 (86) International application number: PCT/IB2004/000820 (87) International publication number: WO 2004/082587 (30.09.2004 Gazette 2004/40)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR Designated Extension States: AL LT LV MK (30) Priority: 21.03.2003 IN DE03552003 (71) Applicant: RANBAXY LABORATORIES, LTD. New Delhi 110 019 (IN)

(72) Inventors: MEHTA, Kamal Rajasthan (IN) MATHUR, Rajeev, Shanker Gurgaon 122002 Haryana (IN) SETHI, Sanjeev Sector - 8 Faridabad 121006 (IN) MALIK, Rajiv Unterer Schreiberweg A-1190 Wien (AT) SINHA, Suhani c/o S.P. Sinha Vaishali Bihar 844101 (IN) (74) Representative: Gilholm, Stephen Philip et al Ranbaxy Laboratories Limited Intellectual Property Dept. 20 Balderton Street London W1K 6TL London W1K 6TL (GB)