
Lactulose is useful in treating hyperammonemia (high blood ammonia), which can lead to hepatic encephalopathy
Hepatic Encephalopathy
A loss of brain function as a result of failure in the removal of toxins from the blood due to liver damage.
Ammonium
The ammonium cation is a positively charged polyatomic ion with the chemical formula NH⁺₄. It is formed by the protonation of ammonia. Ammonium is also a general name for positively charged or protonated substituted amines and quaternary ammonium cations, where one or mo…
What does lactulose do for encephalopathy?
Lactulose is used in preventing and treating clinical portal-systemic encephalopathy. Its chief mechanism of action is by decreasing the intestinal production and absorption of ammonia. It has also gained popularity as a potential therapeutic agent for the management of subacute clinical encephalopathy.
How does lactulose treat encephalopathy?
Tell your doctor if any of these symptoms are severe or do not go away:
- diarrhea
- gas
- nausea
What conditions does lactulose treat?
What Conditions does LACTULOSE Treat?
- high amount of ammonium in the blood
- constipation
- impaired brain function due to liver disease
What is the mechanism of action of lactulose?
[Physiological effects, mechanisms of action and application of lactulose]
- Abstract. The discovery of lactulose as a bifidogenic factor became the background for the appearance of the prebiotics concept.
- Publication types
- MeSH terms

How does lactulose work in liver disease?
It is broken down in the colon into products that pull water out from the body and into the colon. This water softens stools. Lactulose is also used to reduce the amount of ammonia in the blood of patients with liver disease. It works by drawing ammonia from the blood into the colon where it is removed from the body.
Does lactulose treat hepatic encephalopathy?
Lactulose is the most frequently utilized agent in the treatment of hepatic encephalopathy because of its efficacy and the fact that it has few serious side effects.
What is the mechanism of hepatic encephalopathy?
Hepatic encephalopathy (HE) describes a spectrum of potentially reversible neuropsychiatric abnormalities seen in patients with liver dysfunction after exclusion of unrelated neurologic and/or metabolic abnormalities. The term implies that altered brain function is due to metabolic abnormalities.
What is lactulose and how does it work?
Lactulose is a type of laxative called an osmotic laxative. It is broken down in your bowel into substances that pull water out from your body and into your bowel to soften poo and make it easier to pass. People with liver disease can sometimes get problems in their brain (hepatic encephalopathy).
Why is ammonia high in hepatic encephalopathy?
Hepatic encephalopathy, a condition that happens when the liver is too diseased or damaged to properly process ammonia. In this disorder, ammonia builds up in the blood and travels to the brain. It can cause confusion, disorientation, and coma. It can sometimes be fatal.
How does constipation cause hepatic encephalopathy?
He had severe constipation for over a week before the onset of encephalopathy. His encephalopathy was likely due to increased absorption of ammonia into the mesenteric blood supply due to very slow transit constipation. Such absorption of ammonia most likely overwhelmed hepatic excretion.
What is hepatic encephalopathy?
Hepatic encephalopathy is a nervous system disorder brought on by severe liver disease. When the liver doesn't work properly, toxins build up in the blood. These toxins can travel to the brain and affect brain function.
Does lactulose decrease bilirubin?
Rationale: Although the liver plays an important role in bilirubin metabolism and serum bilirubin is increased in clients diagnosed with chronic hepatitis, lactulose is not given to lower serum bilirubin levels.
What drug class is lactulose?
SugarLactulose / ClassificationSugar is the generic name for sweet-tasting, soluble carbohydrates, many of which are used in food. Simple sugars, also called monosaccharides, include glucose, fructose, and galactose. Wikipedia
Does lactulose raise glucose?
A previous study in healthy subjects revealed no increase in blood glucose levels after oral lactulose intake.
What is in lactulose solution?
Lactulose is a synthetic disaccharide in solution form for oral or rectal administration. Each 15 mL of Lactulose Solution USP contains 10 g lactulose (and less than 1.6 g galactose, less than 1.2 g lactose, and 0.1 g or less of fructose). It also contains D&C Yellow No. 10, FD & C Yellow No.
What is lactulose used for?
Lactulose and combination therapy of hepatic encephalopathy: the role of the intestinal microflora. Lactulose is the most frequently utilized agent in the treatment of hepatic encephalopathy because of its efficacy and the fact that it has few serious side effects.
Can neomycin be given with lactulose?
There is some evidence that neomycin can be given with lactulose to cause an additive effect in the treatment of hepatic encephalopathy. This effect is most prominent in patients who have not responded adequately to lactulose alone. At this point, the other antibiotics studied do not appear to have additive effects with lactulose.
Is lactulose a disaccharide?
How this nonabsorbable disaccharide works has been a matter of controversy, but evidence suggests that metabolism by the enteric flora ….
Does lactulose reduce urea production?
Most of the nitrogen is contained in the fecal bacterial and the soluble fractions of stool. The administration of lactulose causes a reduction in the urea production rate consistent with a reduced entry of am monia into portal blood, but it does not appear to directly inhibit urea degradation.
Is lactic acid a disaccharide?
Answer. Lactulose (beta-galactosidofructose) and lactilol (beta-galactosidosorbitol) are nonabsorb able disaccharides that have been in common clinical use since the early 1970s (the latter is not available in the United States). They are degraded by intestinal bacteria to lactic acid and other organic acids.
Does lactulose inhibit ammonia production?
They are degraded by intestinal bacteria to lactic acid and other organic acids. Lactulose appears to inhibit intestinal ammonia production by a number of mechanisms. The conversion of lactulose to lactic acid and acetic acid results in the acidification of the gut lumen. [ 43, 44] This favors conversion of ammonia (NH 3) to ammonium (NH 4 +);
What is the purpose of the booklet "Lactulose for Liver Disease"?
The aim of this booklet is to provide information about the importance of lactulose therapy for patients with Advanced Liver Disease and to provide information about how to prevent/reduce Hepatic Encephalopathy.
Is lactulose a laxative?
Lactulose is a man-made non-absorbable sugar and liquid laxative. It draws water from the body into the colon which helps to soften the stool and make it more acidic, as well as increase bowel motion.
