12th Class Chemistry Chemistry in Everyday Life

  • question_answer 16) Why are cimetidine and rantidine better antacids thansodium hydrogen carbonate or magnesium or aluminum hydroxide? 

    Answer:

    Antacids  or  neutralize theexcess acid produced in the stomach, but their prolong use can causethe production of excess acid in the stomach which is harmful and mayresult in ulcers. Cimetidine and rantidine work without such sideeffects as they prevent interaction of histamine with the receptores ofthe stomach wall as histamine stimulates the secretion of acid.  

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