摘要 |
A novel particulate composite hydrotalcite which offers antacidic effect comparable to that of a particulate hydrotalcite so far used as a gastric antacid and, further, offers excellent stomach inner wall protection effect. A particulate composite hydrotalcite represented by the following formula (1), <?in-line-formulae description="In-line Formulae" end="lead"?>(MgaZnb)1-xAlx(OH)2(An-)x/n.mH2O (1)<?in-line-formulae description="In-line Formulae" end="tail"?> wherein An- is CO32-, SO42- or Cl-, n is 1 or 2, and x, a, b and m are values that satisfy the following conditions, 0.18<=x<=0.4, 0.5<=a<1, 0<b<=0.5, 0<=m<=1, and a gastric antacid using the particulate composite hydrotalcite as an effective component. When used as a gastric antacid, the particulate composite hydrotalcite suppresses the occurrence of damage in the mucous membranes of stomach and intestines.
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