Bulk-forming

Definition

Bulk-forming laxatives are substances that absorb water in the intestines, increasing stool bulk and promoting bowel movements. They are often used to treat constipation and maintain regularity.

5 Must Know Facts For Your Next Test

1. Bulk-forming laxatives can take 12-72 hours to produce a bowel movement.
2. They work by absorbing water into the stool, making it softer and easier to pass.
3. Common bulk-forming agents include psyllium, methylcellulose, and polycarbophil.
4. Adequate fluid intake is essential when using bulk-forming laxatives to prevent intestinal blockage.
5. These laxatives are generally considered safe for long-term use with minimal side effects.

Review Questions

• How do bulk-forming laxatives help alleviate constipation?
• What is the typical time frame for bulk-forming laxatives to take effect?
• Why is it important to drink plenty of fluids when taking bulk-forming laxatives?

Related terms

Psyllium:

A natural fiber commonly used as a bulk-forming laxative.

Methylcellulose:

A synthetic fiber used as a bulking agent in stool softeners.

Polycarbophil: A synthetic polymer used in bulk-forming laxatives that absorbs water to form a gel-like mass.