In acute constipation, purgatives that are used to stimulate intestinal peristalsis and evacuation of fluid faeces contain salts of
A
Sodium
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B
Potassium
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C
Magnesium
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D
Calcium
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Solution
The correct option is C Magnesium Saline laxatives result in the secretion of water in the intestine to maintain isotonicity with plasma. For acute constipation, purgatives containing salts of magnesium are used to stimulate intestinal peristalsis and evacuation of fluid faeces as it increases the fluidity and volume of intestinal contents.