Question

Match the laxative with its associated mechanism of action.

A. Draws water into the intestine to relieve constipation

B. Softens and increases bulk of digested food

C. Increases water in stools to soften it so it is more comfortable to pass

D. Activates chloride channels to enhance intestinal fluid secretion

Options:

1. Lubiprostone     __

2. Psyllium __

3. Polyethylene glycol    __

4. Mineral oil __

Answer 1

Laxatives

It is also called as purgative. Laxatives are mainly used to treat and prevent constipation

The main laxatives are bulk laxatives, stimulate laxatives, osmotic laxatives, chloride channel activators

1. Lubiprostone	D. Activates chloride channels to enhance intestinal fluid secretion
2. Psyllium	B. Soften and increases the bulk of digested food
3. Polyethylene glycol	A. Draws water into the intestine to relieve constipation
4. Mineral oil	C. Increases water in stools to soften it so it is more comfortable to pass