Product image of Lactulose Viatris (Lactulose) supplied by GNH India

Lactulose Viatris

Active Ingredient:
Lactulose
Origin:
EU

Lactulose Viatris (Lactulose)

Lactulose, the active ingredient in Lactulose Viatris, is an osmotic laxative presented as an oral preparation for gastrointestinal use. It is employed to treat constipation and to lower intestinal ammonia absorption in patients with hepatic encephalopathy.

GNH India supplies Lactulose Viatris as a licensed, GDP‑compliant international pharmaceutical supplier serving hospitals, transplant centres, oncology centres, pharmacies and clinics worldwide.

Manufacturer / TM Owner

Viatris Sante

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Indications & Clinical Uses

Lactulose is an osmotic laxative that acts on the gastrointestinal tract to manage two primary clinical conditions.

  • Constipation: softens stool and increases bowel frequency by drawing water into the intestinal lumen, facilitating easier passage.
  • Hepatic encephalopathy: reduces absorption of ammonia from the gut, helping to improve mental status in patients with liver disease.

How It Works

  • Lactulose is a synthetic disaccharide that is not absorbed in the small intestine. In the colon, bacterial enzymes hydrolyze it to short‑chain acids, lowering colonic pH and creating an osmotic gradient that draws water into the lumen. The increased fluid softens stool and accelerates transit, while the acidic environment traps ammonia as ammonium, decreasing its systemic absorption.

Side Effects

Lactulose may cause a range of adverse reactions, most of which are mild and related to its osmotic activity.

Common Side Effects

  • Abdominal bloating
  • Flatulence
  • Diarrhea
  • Nausea
  • Stomach cramps
  • Increased stool frequency

Serious or Rare Side Effects

  • Severe electrolyte imbalance (e.g., hyponatremia)
  • Dehydration
  • Allergic reaction (rash, itching, swelling)
  • Severe abdominal pain
  • Rectal bleeding
  • Persistent vomiting

Precautions & Warnings

Lactulose should be used with attention to patient‑specific factors and proper storage.

  • Monitor electrolytes: especially in elderly or renal‑impaired patients.
  • Adjust dose in renal impairment: reduced clearance may increase risk of toxicity.
  • Caution in diabetes: the sugar content may affect blood glucose control.
  • Avoid abrupt discontinuation: may cause rebound constipation.
  • Store at room temperature: keep in the original container, protect from moisture and direct sunlight.

Avoid Interactions

Lactulose can interact with other medicines, altering efficacy or safety.

Major Interactions (Avoid)

  • Concomitant use with other laxatives: may cause severe diarrhea and dehydration.
  • Antidiarrheal agents (e.g., loperamide): can reduce lactulose effectiveness and increase risk of colonic overload.

Moderate Interactions (Monitor Closely)

  • Antibiotics: may change gut flora and affect lactulose metabolism.
  • Oral hypoglycemic agents: monitor blood glucose due to carbohydrate content.
  • Mineral supplements (e.g., calcium, magnesium): may bind to lactulose and reduce its osmotic effect.

Frequently Asked Questions

Lactulose Viatris is indicated for the treatment of constipation and for the management of hepatic encephalopathy. In constipation, it softens stools and promotes regular bowel movements. In hepatic encephalopathy, it helps lower blood ammonia levels by reducing its absorption from the gut.

Lactulose is a synthetic sugar that reaches the colon unchanged. Bacterial enzymes split it into short‑chain fatty acids, which lower colonic pH and create an osmotic gradient that draws water into the lumen. This softens stool and speeds transit, while the acidic environment traps ammonia as ammonium, decreasing systemic absorption.

The dose of Lactulose Viatris is individualized by the prescribing clinician based on the patient’s condition, age, renal function and response. Healthcare professionals determine the appropriate amount and frequency to achieve the desired therapeutic effect.

Safety data for lactulose in pregnancy and lactation are limited. It is generally considered low risk because it is minimally absorbed, but the prescriber should evaluate the benefit‑risk balance for each patient and consider alternative therapies if appropriate.

To place an order, submit an enquiry on the product page at gnhindia.com, specifying the required quantity. GNH India works with hospitals, pharmacies and procurement teams worldwide, verifies trade or institutional credentials, and then provides pricing, availability, shipping details and any necessary import documentation.

Lactulose is an osmotic laxative, differing from stimulant laxatives that increase intestinal motility. Its dual action—softening stool and lowering ammonia—makes it useful for both constipation and hepatic encephalopathy, whereas many other laxatives address only bowel movement frequency.

Lactulose Viatris should be stored at room temperature, below 25 °C, in its original packaging to protect it from moisture and direct sunlight. Keep the container tightly closed when not in use.

Lactulose Viatris is taken orally, usually as a liquid or syrup. The patient should follow the prescriber’s instructions regarding the amount, timing and whether it should be taken with or without food.

Serious risks include severe electrolyte disturbances such as hyponatremia, dehydration from excessive diarrhea, and rare allergic reactions. Patients should seek medical attention if they experience persistent vomiting, severe abdominal pain, or signs of an allergic response.

Lactulose is contraindicated in patients with known hypersensitivity to lactulose or any component of the formulation. Caution is advised in individuals with severe intestinal obstruction, galactosemia, or those who require strict fluid and electrolyte balance without close monitoring.

Published by

GNH India Pharmaceuticals Limited

Licensed pharmaceutical supplier

Last updated:

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