治療便秘 Constipation and hepatic encephalopathy(treatment and prophylaxis)
藥理
Ammonium Detoxicant; Osmotic laxative
藥動學
Metabolism
Via colonic flora to lactic acid and acetic acid; requires colonic flora for drug activation Excretion
Primarily feces; urine (≤3%) Pharmacodynamics
1. Constipation: Up to 24 to 48 hours to produce a normal bowel movement
2. Encephalopathy: At least 24 to 48 hours
禁忌症
Patients requiring a low galactose diet
懷孕分類
B
哺乳分類
It is not known if lactulose is excreted in breast milk; however, lactulose is poorly absorbed following oral administration. The manufacturer recommends that caution be exercised when administering lactulose to nursing women.
Constipation:
15 to 30 mL daily; may increase to 60 mL daily if necessary Portal systemic encephalopathy (PSE), prevention:
1. Oral: 30 to 45 mL 3 to 4 times daily
2. Rectal: 300mL Lactulose diluted with 700mL Normal Saline or water, for 30-60 minutes
小兒調整劑量
Portal systemic encephalopathy (PSE), prevention:(oral)
1. Infants: 2.5 to 10 mL/day in divided doses
2. Children and Adolescents: 40 to 90 mL/day in divided doses Constipation (off-label dose):(oral)
1.5 to 3 mL/kg/day once daily or in 2 divided doses
腎功能調整劑量
There are no dosage adjustments provided in manufacturer's labeling.
肝功能調整劑量
There are no dosage adjustments provided in manufacturer's labeling.
安定性
Keep away from light and store at room temperature (15~30 °C)