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(11)

EP 1 545 473 A2

(12)

(88) Date of publication A3: 13.05.2004 (43) Date of publication: 29.06.2005 Bulletin 2005/26 (21) Application number: 03735864.5 (22) Date of filing: 09.06.2003

(51) International Patent Classification (IPC)7: A61K 9/24, A61K 9/26, A61K 9/28, A61K 9/52, A61K 31/4965, A61K 31/137 (86) International application number: PCT/IB2003/002186 (87) International publication number: WO 2003/103637 (18.12.2003 Gazette 2003/51)

(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 PT RO SE SI SK TR Designated Extension States: AL LT LV MK (30) Priority: 07.06.2002 IN DE07062002 15.11.2002 IN DE15112002 06.03.2003 IN DE06032003 (71) Applicant: RANBAXY LABORATORIES, LTD. New Delhi 110 019 (IN)

(72) Inventors: KUMAR, Pratik 842001 Muzaffarpur, Bihar (IN) JAIN, Girish Kumar 110034 Dehli (IN) RAMPAL, Ashok 143001 Amritsar, Punjab (IN) NITHIYANANDAM, R.No. 24, Bairavan Kovil Street Periyar, Tamil Nadu638 65 6 (IN) RAMAKRISHNAN, Sankar Tamil Nadu 614 903 (IN) RAGHUVANSHI, Rajeev Singh 110 070 New Delhi, Delhi (IN) (74) Representative: Gilholm, Stephen Philip  Ranbaxy Laboratories Ltd,95 Park Lane Mayfair,London W1K 7TE Mayfair,London W1K 7TE (GB)