abstract |
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. n in which n X, R 1 , R 2 , R 3 , R 4 and R 5 are defined as described in the specification. |