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Buy Lactulose Solution online

Lactulose Solution (500ml)

Order before 4pm for delivery from Thu. 16 Aug.

Product Information

  • Age: From Birth

    Maximum per order: 3

  • Pregnancy: Suitable

    Breastfeeding: Suitable


Lactulose Solution is a natural laxative that helps to gently regulate bowel movements, easing chronic or habitual constipation. It generally begins working in eight to twelve hours but may take up to two days to improve constipation. Constipation can affect anyone at any time, but if left untreated can be serious.

Lactulose solution is an osmotic laxative made up of sugar molecules which are broken down by bacteria in the gut. This increases the acidity of the gut’s contents, which reduces the absorption ammonia. Ammonia in the gut causes water to be drawn into the lower bowel which increases the amount of water in the stools, softening them and making them easier to pass, thus relieving constipation. It can take up to 48 hours for the lactulose to have this effect.

Lactulose does not enter the bloodstream nor is it dissolved by human enzymes. It remains in the digestive bolus, causing retention of water which leads to softer stool. It has a secondary laxative effect in the colon, where it is fermented by the gut flora, producing metabolites which have osmotic properties and peristalsis-stimulating effects.

Lactulose is very sweet and can be diluted if needed. It is not absorbed in to the blood stream and is thus suitable for pregnant women, nursing mothers, the elderly, children and anyone who has recently undergone surgery.

Constipation can occur for a number of reasons including a change of diet, medication, lack of exercise and diseases. Taking Lactulose Solution, increasing your fibre intake, exercising and drinking plenty of fluids can help.




Common side effects of Lactulose Solution include abdominal bloating and cramps.


You can take this medication either with or without food. If you find that Lactulose upsets your stomach, try taking it with water, fruit juice or meals.


Directions for use:

  • Swallow each dose immediately. Dont keep it in your mouth as the sugar may lead to tooth decay, particularly if you are taking the medication long-term.
  • If you forget to take a dose, just leave it out and take the next dose at its usual time. Do not take a double dose to make up for a missed one.
  • Consult your doctor if your symptoms worsen or have not improved after a few days.





*Prescription medicines are supplied subject to a medical consultation at the discretion of a doctor.

Adults and children 10 years and over:

Take three 5ml spoonfuls every day.

Children aged 5 to 10 years:

Give two 5ml spoonfuls every day.

Children aged 1 to 5 years:

Give one 5ml spoonful every day.

Babies under 1 year:

Give 2.5ml twice every day.

Not everyone will experience side effects when they take medication, however if you do they can include:

  • Abdominal distension,flatulence and cramps are some of the mild transient effects that have occasionally been reported, although they often subside after the first stages of treatment.
  • High doses of Lactulose solution might trigger nausea in some individuals, although, this can be minimized by taking the treatment together with meals, fruit juice or water.

If you are concerned about these effects, or if the product affects you in any other way, stop using it and talk to your doctor or pharmacist.

The active ingredients contained in this medicine is/are:


The medicine also contains the following inactive ingredients to make up the complete product:

Lactose and galactose.

Reading the following warnings carefully will help to ensure you are selecting an appropriate product.

  • Take Lactulose Solution only as recommended. 
  • Consult your doctor if symptoms persist. 
  • Extended use of laxatives for a long periods is undesirable. 

Please read all packaging and the Product Information Leaflet before taking any new medicine and inform your doctor of medicines you are taking or intend to take.


We offer FREE standard tracked delivery on orders over £40.

The following delivery options are available:

  • Standard Tracked Delivery - 2/3 day delivery - £2.95
  • Express Tracked Delivery - 1/2 day delivery - £4.45
  • Special Delivery (Guaranteed before 1pm) - £8.95
  • Saturday Guaranteed before 1pm - £10.45

All our orders are sent out using Royal Mail. We always aim to dispatch all orders received before 4pm the same working day. Any orders received after 4pm or over the weekend will be dispatched the next working day. Orders will not be dispatched on weekends or bank holidays.

All orders can be fully tracked in your account.

We ensure all parcels are in plain packaging for discreet delivery of your medicines and pharmacy goods.

Deliveries containing pharmacy-only or prescription medicines may require a signature on receipt. 

Delivery is free for all NHS prescriptions.

Please note: Royal Mail do not deliver on Sundays or Bank Holidays - this should be taken into account when ordering. 

If you are not home to accept your delivery, a card should be left by the Royal Mail representative. This card will provide details of where you can collect the order or how to arrange re-delivery.

Should you be unable to collect your missed delivery or arrange for your medication to be redelivered by Royal Mail, the pharmacy can resend your medication to the same, or a different address provided it has been returned to us and this happens within a 30 day window.

Once a package has been shipped with Royal Mail we advise that you are bound to the terms and conditions of their use together with the terms and conditions contained herein.

You have the right to cancel your order up to the point when your treatment is dispatched. The pharmacist must destroy any medication within 30 days of it being returned, even un-opened boxes, so we are not able to offer refunds once your treatment has been dispatched.


Forwarding houses

We are unable to ship orders to mailing or forwarding houses for onwards shipping to locations outside of the UK.


BFPO Postcodes

Unfortunately we are unable to deliver medicines to BFPO postcodes.


Remote Areas

Please be aware that Royal Mail Guaranteed services are not available to all customers in the UK, especially those that live in remote postcodes. Royal Mail advise customers of the following:

We deliver by 5.30pm the next working day in the following postcode areas:
AB30 - 39, 41 - 45, 51 - 56
GY9 Alderney (Channel Islands)
HS1, 3 - 9
IV21 - 28, 40 - 49, 51 - 56
KA27, 28
KW1 - 3, 5 - 15
KW16 Stromness Town only
PA20 (0&9)
PA28 - 38, 41 - 49, 76, 77
PH15, 17 - 26, 31 - 40, 49, 50


We deliver within two working days by 5.30pm to the following postcodes areas:
GY1 Herm (Channel Islands)
GY9 Sark (Channel Islands)
PA60 - 75, 78
ZE2, 3


We deliver within three working days by 5.30pm to the following postcode areas:
KW16 - non-Town
PH30, 41 - 44


Please note: This applies to our 'Special Delivery' and 'Saturday Guaranteed' services.



We are currently unable to ship orders outside of the UK.

We are unable to ship orders to mailing or forwarding houses for onwards shipping to locations outside of the UK.

Need to know more about Constipation?

Visit our advice area or contact our support team

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Take a free online assessment with our medical team for impartial help and advice on your condition.

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We are regulated by a number of organisations in the UK including the MHRA, GPhC & CQC to ensure we offer the highest level of service to every one of our customers.

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  • 1 Complete a simple health questionnaire
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