#$%^&*AU2013201203C120150423.pdf#####ABSTRACT A pharmaceutical composition comprising (+)-1,4-dihydro-7-[(3S,4S)-3-methoxy-4(methylamino)- I -pyrrolidinyl]-4-oxo- 1 -(2-thiazolyl)- 1,8-naphthyridine-3-carboxylic acid and 5 an acid, wherein the pH of the composition is in the range 2 to 3 5 when measured in an aqueous solution O.name-