| 摘要 |
It is provided a liquid preparation stably including (2S)-I- (4-amino-2, 3, 5-trimethylphenoxy) -3-{ 4-[ 4- (4-fluorobenzyl) phenyl] -1- piperazinyl} -2-propanol or its pharmaceutically acceptable salt as an active ingredient . The present invention relates to a liquid preparation including the above compound or its pharmaceutically acceptable salt as an active ingredient, th e liquid preparation including: (a) at least one selected from the group con sisting of sulfite, bisulfite, pyrosulfite, .alpha.-thioglycerol and cystein e, (b) a .beta.-cyclodextrin derivative, and (c) a pH buffer, wherein the pH value thereof is adjusted within a range of from 3 to 5.
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