Docusate sodium (Colace) is best described as what type of laxative?

• A. Stool softener
• B. Stimulant laxative
• C. Antidiarrheal
• D. Antacid

Answer: (A)

Docusate sodium is a stool softener. It works as a surfactant that lowers the surface tension of stool, allowing water and fat to penetrate the stool and soften it so it can pass more easily. This is different from stimulant laxatives, which trigger increased bowel movements; from antidiarrheals, which slow or limit stool passage; and from antacids, which neutralize stomach acid. Docusate is typically used to prevent straining and ease passage, usually taking effect in about one to three days.