Home
Class 12
CHEMISTRY
Why are Cimetidine and Ranitidine better...

Why are Cimetidine and Ranitidine better antacids than sodium hydrogen carbonate or magnesium hydroxide?

Text Solution

Verified by Experts

Antacids`NaHCO_3, Mg(OH)_2 or Al(OH)_3` neutralise the excess acid produced in the stomach but their prolong use can cause the production of excess acid in the stomach which is harmful and may result in ulcers. Cimetidine and ranitidine work without such side effects as they prevent interaction of histamine with the receptors of the stomach wall as histamine stimulates the secretion of acid. Thus, these are better antacids than `NaHCO_3, Mg(OH)_2 or Al(OH)_3` .
Promotional Banner

Topper's Solved these Questions

  • CHEMISTRY IN EVERYDAY LIFE

    ARIHANT PUBLICATION|Exercise CHEMICAL IN MEDICINES (QUESTIONS FOR PRACTICE (LONG ANSWER TYPE QUESTIONS))|5 Videos

  • CHEMISTRY IN EVERYDAY LIFE

    ARIHANT PUBLICATION|Exercise CHEMICAL IN MEDICINES (QUESTIONS FOR ASSESSMENT (MULTIPLE CHOICE TYPE QUESTIONS))|3 Videos

  • CHEMISTRY IN EVERYDAY LIFE

    ARIHANT PUBLICATION|Exercise CHEMICAL IN MEDICINES (QUESTIONS FOR PRACTICE (VERY SHORT ANSWER TYPE QUESTIONS))|23 Videos

  • CHEMICAL KINETICS

    ARIHANT PUBLICATION|Exercise CHAPTER PRACTICE (Long Answer Type Questions)|8 Videos

  • COORDINATION COMPOUNDS

    ARIHANT PUBLICATION|Exercise CHAPTER PRACTICE Long Answer Type Questions 7 MARKS|6 Videos

Similar Questions

Explore conceptually related problems

Between sodium hydrogen carbonate and magnesium hydroxide, which is a better antacid and why?

Why sodium carbonate solution is alkaline ?

Why activated charcoal is a better absorbent than ordinary charcoal ?

When the same amount of zinc is treated separately with excess of sulphuric acid and sodium hydroxide, the ratio of volumes of hydrogen evolved is:

The speed of sound in humid air is more than in dry air, why? Will the speed of sound in humid hydrogen be more than that in dry hydrogen?

Why hydrogen bromide cannot be prepared by reacting sodium bromide with concentrated H_2 SO_4 ?

Although carbon and hydrogen are better reducing agents but they are not used to reduce metallic oxides at high temperatures .why .?