Carbostyril derivative amine salt

The present invention relates to compounds of formula (1): [Wherein, R is a substituted position of a halogen atom, the side chain on the carbostyril skeleton is a 3-position or 4-position, coupling between 3- and 4-positions of the carbostyril skeleton is a single bond or a double bond ] In there is provided a carbostyril derivative amine salt formed from carbostyril derivative with an amine represented, various diseases medicament for the treatment by pharmacological action which is superior with its excellent water solubility, are particularly useful as an aqueous formulation.