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Year : 2006  |  Volume : 38  |  Issue : 6  |  Page : 403-407

Antiulcer effect of amlodipine and its interaction with H2 blocker and proton pump inhibitor in pylorus ligated rats

Department of Pharmacology, Medical College, Vadodara - 390 001. Gujarat, India

Correspondence Address:
A L Bhave
Department of Pharmacology, Medical College, Vadodara - 390 001. Gujarat
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/0253-7613.28206

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Objective: To study the interaction between a calcium channel blocker, amlodipine, and antiulcer agents, famotidine and omeprazole, in pylorus ligation-induced gastric ulcers in rats. Materials and Methods: Gastric ulcers were induced in albino rats by pyloric ligation as described by Shay et al . Effects of different doses of amlodipine, famotidine and omeprazole on volume, pH, acidity of gastric secretion and ulcer index were observed. In addition, the effects of low dose of amlodipine in combination with low dose of famotidine or omeprazole on the above parameters were studied. Results: Amlodipine (0.5 mg and 1 mg/kg, i.p.), famotidine (4 mg/kg, i.p.) and omeprazole (4 mg/kg, i.p.) produced significant antiulcer effects. Low doses of famotidine (1 mg/kg, i.p.), omeprazole (1 mg/kg, i.p.) and amlodipine (0.25 mg/kg, i.p.) did not alter the above parameters significantly. Combined administration of low dose of amlodipine (0.25 mg/kg) and famotidine (1 mg/kg) showed significant antiulcer effects, which were apparent from the reduction in volume of gastric acid secretion, acidity and ulcer index with simultaneous increase in the intragastric pH. Similarly, low dose of omeprazole (1 mg/kg) when combined with low dose of amlodipine (0.25 mg/kg) also showed significant antiulcer effects. Conclusion: Amlodipine produced significant antiulcer effects in pylorus-ligated model. Combination of low doses of amlodipine with low doses of either famotidine or omeprazole produced significant antiulcer effects. It is suggested that the patients who received amlodipine therapy for some other clinical conditions are less prone to develop peptic ulcers; and even if ulcers develop, they would require lower doses of antiulcer agents like famotidine and omeprazole.


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