Pharmacology MCQ Answer 69
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- Bulk laxatives: causes reflex contraction (peristalsis) that propels the bowel content forward Increase in bowel content volume triggers stretch receptors in the intestinal wall
- Non-absorbable carbohydrates (Bran, Fiber)
- Osmotically active laxatives (Epsom salt)
- Irritant laxatives = purgatives. Cause irriatation of the enteric mucosa => more water is secreted than absorbed => softer bowel content and increased peristaltic due to increase volume
- Small bowel irritants (Ricinoleic acid and Ricin) Large bowel irritants (Anthraquinones, Bisacodyl, Sodium picosulfate)
- Lubricant laxatives
- Paraffin
- Glycerol
Category: Pharmacology MCQs
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