Lactulose Fresenius Oral Solution 670mg/ml is a gentle, effective treatment for constipation. Lactulose works by drawing water into the bowel to soften stools and make them easier to pass. It is not absorbed into the body, making it suitable for ongoing use under pharmacist or doctor supervision. Results typically occur within 2–3 days.
Also used for managing portal systemic encephalopathy (a liver-related condition) under doctor supervision.
Key Features
- Softens stools and promotes regular bowel movements
- Gentle osmotic action — no harsh stimulant effects
- Suitable for adults and adolescents aged 14+
- Children and infants: use only on medical advice
- Can be taken with or without food
- 500ml bottle with measuring cup
How to Use
Adults and adolescents (14+):
- Starting dose: 15–45ml daily (10–30g lactulose)
- Maintenance dose: 15–30ml daily (10–20g lactulose)
- Take once daily, preferably at the same time (e.g. breakfast), or divide into smaller doses
- May be taken undiluted or mixed with water, juice or another drink
- Drink 6–8 glasses of fluid per day (approx. 2 litres)
Children and infants: Use only under medical supervision.
Active Ingredient
Lactulose 670mg per ml. Contains no other ingredients.
Side Effects
- Mild bloating or wind (especially at start of treatment)
- Abdominal discomfort or diarrhoea
- Nausea or vomiting
If side effects persist, reduce dose or consult your pharmacist or doctor. Stop use and seek advice if allergic reaction occurs (rash, itching, swelling).
Warnings
- Do not use if allergic to lactulose or if you have galactosæmia
- Consult your doctor before use if you have abdominal pain, bowel obstruction or inflammatory bowel disease
- Long-term high doses may cause diarrhoea and electrolyte imbalance — use only as directed
- If pregnant, breastfeeding, diabetic or have a liver condition, seek medical advice before use
- Keep out of reach of children
- Do not store above 25°C. Keep tightly closed. Once opened, use within 1 year.