| 摘要 |
The present invention relates to a microgranule prepared by using an alkali compound as a stabilizer for a 5-pyrrolyl-2-pyridylmethylsulfinylbenzimidazole derivative having the following formula (1), which is a very effective antiulcerative but highly unstable under acidic conditions, and by using a water-soluble polymer as a binding agent.in whichX, R1, R2, R3, R4 and R5 are defined as described in the specification.
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