(19)
(11) EP 1 312 366 A8

(12) CORRECTED EUROPEAN PATENT APPLICATION
published in accordance with Art. 158(3) EPC

(48) Corrigendum issued on:
12.11.2003 Bulletin 2003/46

(43) Date of publication:
21.05.2003 Bulletin 2003/21

(21) Application number: 01956809.6

(22) Date of filing: 08.08.2001
(51) International Patent Classification (IPC)7A61K 31/5383, A61K 9/08, A61K 47/12, A61K 47/34, A61K 47/38, A61P 31/04
(86) International application number:
PCT/JP0106/805
(87) International publication number:
WO 0201/1734 (14.02.2002 Gazette 2002/07)
(84) Designated Contracting States:
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
Designated Extension States:
AL LT LV MK RO SI

(30) Priority: 08.08.2000 JP 2000240455

(71) Applicant: Wakamoto Pharmaceutical Co., Ltd.
Chuo-ku, Tokyo 103-8330 (JP)

(72) Inventors:
  • SUZUKI, Hidekazu, c/o WAKAMOTO PHARM. CO., LTD.
    Chuo-ku, Tokyo 103-8330 (JP)
  • WADA, Takahiro, c/o WAKAMOTO PHARM. CO., LTD.
    Chuo-ku, Tokyo 103-8330 (JP)
  • KIRITA, Masanobu
    Kashiwa-shi, Chiba 277-0084 (JP)
  • TAKEUCHI, Masanobu, c/o WAKAMOTO PHARM. CO., LTD.
    Chuo-ku, Tokyo 103-8330 (JP)

(74) Representative:  


 ()

   


(54) AQUEOUS PHARMACEUTICAL COMPOSITIONS


(57) The present invention has an object to provide an antibacterial aqueous pharmaceutical composition and an aqueous pharmaceutical composition which have a sufficiently low gelation temperature even when new quinolone antibacterial agents such as ofloxacin as the active ingredient and can be retained at the administration site for a long time by virtue of rapid viscosity increase after administration in spite of their being liquid at administration, thereby attaining high availability of a pharmaceutical agent.
The present invention relates to an antibacterial aqueous pharmaceutical composition
   which comprises: 2.8 to 4 w/v% of methylcellulose, the 2 w/v% aqueous solution of which has a viscosity of 12 mPa·s or below at 20°C; 1.5 to 2.3 w/v% of citric acid; 2 to 4 w/v% of polyethylene glycol; and 0.1 to 0.5 w/v% of ofloxacin.