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Generic

Lactitol

8 brands available in the market

At a glance

Lactitol is a sugar-based medicine used to treat constipation. It works by drawing water into the intestine through osmosis, making the stool soft and easier to pass.

Description

Lactitol Monohydrate is a disaccharide derivative consisting of galactose and sorbitol, which is minimally absorbed and not hydrolyzed by GI disaccharidases, thus reaching the colon unchanged. In the colon, it is broken down to short-chain organic acids by intestinal flora, increasing osmotic pressure and stool water content and volume, producing a laxative effect. Lactitol is virtually 100% bioavailable in the colon lumen. Up to 2% can be found unchanged in urine.

Indications
  • Chronic idiopathic constipation (CIC)
  • Acute and chronic portal systemic encephalopathy
Therapeutic class

Osmotic Laxative

Pharmacological class

Disaccharide

Pharmacology

Lactitol Monohydrate is a disaccharide derivative that is minimally absorbed and reaches the colon where it is broken down by intestinal flora to organic acids, increasing osmotic pressure and stool volume.

Mechanism of action

Draws water into the intestine through osmosis, softening stool and aiding passage.

Dosage

Constipation (Adult):

  • Initial dose: 20 g (2 teaspoonfuls) in a single dose with morning or evening meal
  • After a few days: 10 g daily may be sufficient
  • Take with plenty of water

Constipation (Children):

  • Mean dose: 0.25 g/kg body weight daily
  • 1-6 years: 2.5-5 g
  • 6-12 years: 5-10 g
  • 12-16 years: 10-20 g

Portal Systemic Encephalopathy:

  • Initial dose: 0.5-0.7 g/kg body weight daily, divided into 3 doses with meals
Administration
  • Measure with a measuring cup and take by mouth
  • Can be mixed with hot or cold beverages, puddings, etc.
  • Shake well before use
  • Take at a fixed time
Missed dose

If you miss a dose, skip it and continue with your normal schedule. Do not double the dose.

Side effects

Common Side Effects:

  • Flatulence
  • Abdominal pain/cramps
  • Sensation of fullness
  • Abdominal distension
  • Nausea (occasional)
  • Anal pruritus (occasional)

These effects tend to diminish or disappear after a few days of regular intake.

Precautions & warnings
  • Monitor serum electrolytes in elderly or debilitated patients on long-term therapy
  • Correct pre-existing fluid or electrolyte imbalance before starting treatment
  • Not recommended for ileostomy or colostomy
  • Avoid prolonged use of laxatives without interruption
  • Do not use with other laxative medicines
  • Antacids and neomycin should not be given simultaneously
Contraindications
  • Hypersensitivity to any ingredients
  • Gastrointestinal obstruction
  • Galactosemia
Drug interactions
  • Antacids and neomycin should not be given simultaneously (in cirrhotic patients)
  • May increase potassium loss caused by thiazide diuretics, corticosteroids, carbenoxolone, amphotericin B
  • May enhance the risk of toxic effects of glycosides
Food interactions

Safety with alcohol is not known; consult your doctor.

Use in pregnancy

Use in Pregnancy: Information regarding the use of Lactitol during pregnancy is not available; consult your doctor.

Use in lactation

Use in Lactation: Information regarding the use of Lactitol during breastfeeding is not available; consult your doctor.

Pediatric use

Pediatric doses are established (weight-based); effective and safe in children above 4 years of age.

Geriatric use

Monitor serum electrolytes in elderly or debilitated patients on long-term therapy.

Renal / hepatic impairment

Renal Impairment: Limited information available; consult your doctor.

Hepatic Impairment: Limited information available; consult your doctor.

Overdose effects

No specific overdose information available; excessive doses may increase side effects.

Storage conditions

Store in a cool and dry place, away from light; keep out of reach of children.

Chemical structure

Lactitol

Common questions

What does Lactitol do?
It is used to treat constipation. It draws water into the intestine to soften stool.
How to use it?
Take 10-20 g mixed with water or juice as advised by your doctor.
What are the side effects?
Flatulence, cramps, abdominal distension, etc. may occur, which are usually temporary.
⚠️ This information is for educational purposes only — not a substitute for medical advice. Consult a registered physician before taking any medicine.