Male Wistar rats weighing 180-220 g were used. Gastric lesion was induced by administration of indomethacin 12 mg kg-1 subcutaneously and also by hypothermic-restraint stress. In the study of protective effect, the rats were pretreated with turmeric suspension in 10% propylene glycol orally at doses of 0.25, 0.5 or 0.75 g kg-1 for 3 days. In the investigation of healing effect, the gastric ulcer was induced and followed by administration of turmeric suspension or curcuminoid.Total length of gastric lesion was measured under the stereomicroscope and used as gastric ulcer indicator. Determinations of soluble and insoluble gastric mucus were performed by spectrophotometry method.