Fiber supplement- Bulk forming agents A diet high in fiber, including unprocessed bran, whole-grain breads, fruits, and vegetables is often helpful. Commercial fiber supplements can be useful to prevent constipation. Commercial fiber supplements can be useful to prevent constipation. It can also be used to treat constipation by adding bulk to the stool. But it takes 12-72 hours for the agents to work.
Polycarophil  Brand Names: EQUALACTIN®, FIBERCON®, FIBER-LAX®
	Can relieve constipation and diarrhea
Psyllium  Brand Names: METAMUCIL®, KONSYL®,  PERDIEM®
	Work slow: in 12-72 hours Minimal side effects Best at preventive and maintenance of regular bowel movement
Methylcellulose  Brand Name: CITRUCEL®
	How do bulking agents work?