Pajjiż: Stati Uniti
Lingwa: Ingliż
Sors: NLM (National Library of Medicine)
Lactulose (UNII: 9U7D5QH5AE) (Lactulose - UNII:9U7D5QH5AE)
Cardinal Health
Lactulose
Lactulose 10 g in 15 mL
PRESCRIPTION DRUG
Abbreviated New Drug Application
LACTULOSE- LACTULOSE SOLUTION CARDINAL HEALTH ---------- LACTULOSE SOLUTION USP 10 G/15 ML RX ONLY DESCRIPTION Lactulose is a synthetic disaccharide in solution form for oral administration. Each 15 mL of Lactulose Solution contains: 10 g lactulose (and less than 1.6 g galactose, less than 1.2 g lactose, and 1.2 g or less of other sugars). Also contains FD&C Yellow No. 6, purified water, and flavoring. Sodium hydroxide used to adjust pH . The pH range is 2.5 to 6.5. Lactulose is a colonic acidifier which promotes laxation. The chemical name for lactulose is 4-O-β-D-galactopyranosyl-D-fructofuranose. It has the following structural formula: The molecular weight is 342.30. It is freely soluble in water. CLINICAL PHARMACOLOGY Lactulose is poorly absorbed from the gastrointestinal tract, and no enzyme capable of hydrolysis of this disaccharide is present in human gastrointestinal tissue. As a result, oral doses of lactulose solution reach the colon virtually unchanged. In the colon, lactulose is broken down primarily to lactic acid, and also to small amounts of formic and acetic acids, by the action of colonic bacteria, which results in an increase in osmotic pressure and slight acidification of the colonic contents. This in turn causes an increase in stool water content and softens the stool. Since lactulose does not exert its effect until it reaches the colon, and since transit time through the colon may be slow, 24 to 48 hours may be required to produce the desired bowel movement. Lactulose solution given orally to man and experimental animals resulted in only small amounts reaching the blood. Urinary excretion has been determined to be 3% or less and is essentially complete within 24 hours. INDICATIONS AND USAGE For the treatment of constipation. In patients with a history of chronic constipation, lactulose solution therapy increases the number of bowel movements per day and the number of days on which bowel movements occur. CONTRAINDICATIONS Since lactulose solution contains galactose (less than 1.6 g/15 mL), i Aqra d-dokument sħiħ