Laevolac Eps (Lactulose)

Lactulose is used to manage several gastrointestinal and hepatic conditions that involve impaired bowel motility or elevated ammonia levels.

• Constipation: softens stools and promotes regular bowel movements.
• Hepatic encephalopathy: lowers colonic ammonia production, improving neurological symptoms.
• Prevention of recurrent hepatic encephalopathy: maintains reduced ammonia levels to prevent relapse.
• Portal‑systemic encephalopathy: decreases neurotoxic substances in patients with liver shunts.
• Constipation in patients on opioid therapy: provides an osmotic effect without stimulating gut receptors.

• Lactulose is a synthetic disaccharide that is not absorbed in the small intestine. In the colon, bacterial enzymes hydrolyze it to short‑chain fatty acids, which increase the osmotic pressure within the lumen, drawing water into the bowel and softening the stool. The resulting acidic environment promotes conversion of ammonia (NH3) to ammonium (NH4+), reducing its absorption and lowering systemic ammonia concentrations.

Lactulose may cause a range of adverse reactions, varying from mild to serious.

Common Side Effects

• Bloating: sensation of abdominal fullness that may increase after dosing.
• Flatulence: increased intestinal gas leading to audible passing of wind.
• Diarrhea: loose, watery stools that can occur especially with higher doses.
• Nausea: feeling of sickness that may precede vomiting.

Serious or Rare Side Effects

• Severe dehydration: excessive fluid loss that can lead to dizziness and requires medical attention.
• Acute abdominal pain: sudden, intense pain that may signal intestinal obstruction or perforation.
• Allergic reaction: rash, itching, swelling, or difficulty breathing indicating hypersensitivity.

When using Lactulose, several precautionary measures should be observed to ensure safety and effectiveness.

• Assess renal function: monitor kidney status as reduced clearance may affect fluid balance.
• Monitor electrolytes: check sodium and potassium levels during prolonged therapy.
• Use caution in diabetes: lactulose contains carbohydrate that can affect blood glucose.
• Adjust dose in hepatic impairment: patients with severe liver disease may require individualized dosing.
• Avoid abrupt discontinuation: taper gradually to prevent rebound constipation.
• Store at room temperature: keep in the original container, protect from moisture and heat.

Lactulose can interact with other medicines, altering their effectiveness or increasing risk of adverse events.

Major Interactions (Avoid)

• Antacids (especially aluminum or magnesium): may reduce lactulose’s osmotic effect.
• Oral antibiotics: can disrupt gut flora, diminishing lactulose’s conversion to acids.
• Rifampin: may increase lactulose metabolism leading to reduced efficacy.

Moderate Interactions (Monitor Closely)

• Diuretics: combined use may exacerbate electrolyte disturbances.
• Insulin or oral hypoglycemics: carbohydrate content of lactulose may affect glucose control.
• Mineral supplements (e.g., calcium carbonate): may bind lactulose and lower its activity.