Summary

Psyllium and methylcellulose are two common bulk-forming laxatives. These laxatives work by absorbing water, which softens stool and increases stool bulk. This increased stool bulk stimulates more frequent bowel movements. Too much bulk-forming laxative can result in diarrhea.

Key Points

• Psyllium, Methylcellulose
  • Mechanism
    • Soluble fiber
      • Promotes peristalsis
  • Clinical Use
    • Laxative for constipation
  • Adverse Effects
    • Diarrhea