(19)

(11)

EP 1 646 374 A1

(12)

(43) Date of publication: 19.04.2006 Bulletin 2006/16 (21) Application number: 04736789.1 (22) Date of filing: 14.06.2004

(51) International Patent Classification (IPC):  A61K 31/155(1985.01) A61K 9/00(1968.09) A61P 3/08(2000.01) A61K 9/20(1974.07) A61K 9/16(1974.07) (86) International application number: PCT/IB2004/050901 (87) International publication number: WO 2004/110422 (23.12.2004 Gazette 2004/52)

(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: 16.06.2003 IN DE08052003 (71) Applicant: RANBAXY LABORATORIES, LTD. New Delhi 110 019 (IN)	(72) Inventors: CHAWLA, Manish Plot - 16, Rohini, Delhi 110085 (IN) RAGHUVANSHI, Rajeev, Singh New Delhi, Delhi 110070 (IN) RAMPAL, Ashok Amritsar, Punjab 143001 (IN) (74) Representative: Gilholm, Stephen Philip  Ranbaxy Laboratories Limited Intellectual Property Department 20 Balderton Street London W1K 6TL London W1K 6TL (GB)