Summary for Lactulose

  • Trade Names: Duphalac (Solvay); Lactugal (Intrapharm)
  • Indications: Constipation; hepatic encephalopathy; hepatic coma
  • Class: Laxative
  • Half-life: 1.7-2 hours
  • Clinically important, potentially hazardous interactions with:
    Nonabsorbable antacids
  • See adverse reactions attributed to class:

    Laxative

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Page last updated 04/18/2026

Symbol key

Incidence - Help

<1% 1‑5% 5‑10% 10‑15% 15‑20% 20‑30% >30%

Seriousness - Help

Hospitalization possible
Life threatening
Fatal

Warnings in other populations - Help

BreastfeedingBreast feeding

GeriatricGeriatric

PediatricPediatric

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