Meaning of lactulose in English:


Pronunciation /ˈlaktjʊləʊz/


mass nounChemistry
  • A synthetic sugar with laxative properties. It is a disaccharide consisting of glucose and fructose units.

    ‘In addition, unabsorbed lactose has an osmotic effect not unlike that of lactulose, a synthetic laxative, increasing the amount of fluid retained in the bowel.’
    • ‘Osmotic laxatives such as lactulose are effective alternatives to soften hard stools.’
    • ‘The most effective daily treatments for opioid-induced constipation are senna, senna combined with a stool softener, Phillips' Milk of Magnesia (magnesium hydroxide) or lactulose.’
    • ‘There may also be a qualitative alteration in bacterial pathogenicity that is relevant to the development of urinary tract infections from using lactulose as an alternative substrate.’
    • ‘Patients with encephalopathy require a low-protein diet and enough lactulose to produce three or four bowel movements daily.’


1930s from lacto-‘of milk’, perhaps on the pattern of cellulose.