The genus, Viburnum Linn. belonging to the family, Adoxaceae (formerly positioned under the family - Caprifoliaceae), has been surveyed to cover about 200 species, in the world, and about 17 of them in India, especially, at an altitude from 800 – 2500 ft, habitat such as Himalaya and Nilgiri hills. The stem parts of these species claim to contain an appreciable quantity of therapeutically valuable phenolic compounds like anthocyanins, phenolic acids, flavones, flavonols and biflavone, and their glycosides. A few of them have been reported to exhibit uterine sedative, antiasthamtic, anti-oxidant, astringent, anti-spasmodic and antimicrobial activities. Based on the above facts on records, the present study has been under taken with an objective of screening the antiulcer potentials o 75% v/v aqueous ethanolic stem extracts of some three species of this genus, namely: V.punctatum, V.coriaceum and V.erubescens by aspirin plus pylorus ligation model in rats, using Ranitidine 50 mg/ kg b.w (p.o) as the positive reference drug. From the findings of ulcer score, histo-pathological features and the status of biochemical parameters of gastric contents, it is concluded that extract of V.coriaceum at a dose level of 500 mg/kg.b.w possessed a significant antiulcer activity (p<0.01, p<0.001). However, the magnitude of antiulcer potential among the species was not far different.
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