The present invention relates to a kind of new purposes of Cit especially relate to the application of a kind of Cit in the preparation medicament for anti-gastric ulcer belong to the materia medica technical field.The present invention studies respectively Cit to the protective effect by rat gastric ulcer due to dehydrated alcohol glacial acetic acid and the aspirin by setting up the Experimental Gastric Ulcer in Rats model.Cit is formed pharmaceutical composition with the conventional medicament for anti-gastric ulcer cimetidine of effective dose ranitidine sucralfate respectively and research finds that to the protective effect of rat gastric ulcer due to above-mentioned three kinds of models its effect is more remarkable.The pharmaceutical composition that in addition the conventional medicament for anti-gastric ulcer of Cit and effective dose is formed is active component adds suitable adjuvant makes pharmaceutically acceptable dosage form comprises tablet granule capsule oral liquid slow releasing preparation and nanometer formulation.

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