Lactulose 3.3g/5ml Oral Solution – 300ml
£4.99
In Stock
Lactulose Oral Solution is an osmotic laxative used to relieve constipation. It is also used in the management of hepatic encephalopathy, a condition where the liver is unable to remove toxins from the blood.
Description
Lactulose 3.3g/5ml Oral Solution – 300ml
Lactulose Oral Solution is an osmotic laxative used to relieve constipation. It is also used in the management of hepatic encephalopathy, a condition where the liver is unable to remove toxins from the blood.
⸻
How It Works
Lactulose is a synthetic sugar that is not absorbed by the body. Instead, it draws water into the bowel, softening the stool and making it easier to pass. It may take 24 to 48 hours before it has an effect, so do not take extra doses if you do not notice an immediate result.
⸻
Directions for Use
The usual starting dose for adults and children aged 14 and over is 15ml twice daily, which can be adjusted to 10–25ml twice daily once the desired effect is achieved. The solution can be taken neat or diluted with water or fruit juice. For children under 14, refer to the patient information leaflet for age-appropriate dosing guidance. Always read the patient information leaflet before use. If you are unsure about the correct dose, speak to your PillSorted pharmacist.
⸻
Active Ingredients
• Lactulose 3.3g per 5ml
⸻
Possible Side Effects
• Flatulence (wind) and bloating, particularly in the first few days of treatment
• Stomach cramps or discomfort
• Nausea
• Diarrhoea (if the dose is too high)
• Electrolyte imbalance with long-term use at high doses
If you experience any serious side effects, stop taking this medicine and seek medical advice immediately.
⸻
Who Should Not Take This Medicine
• People who are allergic to lactulose or any other ingredient in the product
• People with galactosaemia (a rare inherited condition affecting how the body processes galactose)
• People with a blocked or perforated bowel (intestinal obstruction)
• People who are intolerant to galactose or fructose, or have lactase deficiency or glucose-galactose malabsorption
⸻
Interactions
Lactulose has few known significant drug interactions. However, if you are taking neomycin or other antibiotics, this may affect how well lactulose works, particularly when used for hepatic encephalopathy. Tell your PillSorted pharmacist or doctor about all medicines you are currently taking, including herbal remedies and supplements.
⸻
Pregnancy and Breastfeeding
Lactulose is generally considered safe to use during pregnancy and breastfeeding, as it is not significantly absorbed into the bloodstream. However, it is important to seek advice before starting any new medicine. Speak to your doctor or PillSorted pharmacist before use if you are pregnant, trying to conceive, or breastfeeding.
⸻
Alcohol
There is no known significant interaction between lactulose and alcohol. However, drinking plenty of water and maintaining a healthy diet will help lactulose work more effectively, and excessive alcohol consumption can contribute to dehydration and worsen constipation.
⸻
Driving and Operating Machinery
Lactulose does not cause drowsiness and is not expected to affect your ability to drive or operate machinery. If you experience any unexpected effects that impair your alertness, exercise caution and seek advice.
⸻
Storage
Store below 25°C in a dry place, away from direct sunlight. Do not refrigerate. Once opened, use within the period stated on the packaging. Keep out of sight and reach of children. Do not use after the expiry date shown on the packaging.
⸻
Important Information
• This product is a medicine. Speak to your doctor or PillSorted pharmacist before taking this product if you have an underlying medical condition or are taking any other medication or complementary therapy.
• If symptoms worsen or persist, contact your doctor.
• If pregnant, trying to conceive or breastfeeding, seek medical advice before use.
• If you suffer from allergies, confirm suitability with your PillSorted pharmacist before use.
• Store out of sight and reach of children.
• Read the enclosed patient information leaflet carefully before use.
• Contact your GP where appropriate.
⸻
Patient Information Leaflet
For the full Patient Information Leaflet (PIL) for this medicine, visit the electronic Medicines Compendium (EMC). For further information about this medicine, visit NHS.uk.
⸻
This content has been medically reviewed and approved by Zeinab Ardeshir (GPhC 2075730), Superintendent Pharmacist at PillSorted (GPhC-registered online pharmacy 9011258). Last reviewed: February 2026.
| Brand | Generic |
|---|
