results found...

Unfortunately, Cosmocol Orange is currently out of stock. However, Cosmocol Plain and Cosmocol Lemon & Lime are available.


In Stock
Lemon & Lime
Package Type
30 Sachets
30 Sachets
30 Sachets
Get Started
You must complete a short online consultation so that our prescriber can ensure that the treatment is suitable for you.
Order now to receive your order Friday, May 24
All inclusive service
No hidden fees
Next day delivery
Discreetly packaged
Discreet delivery
Prescriber available
Prescriber assess you online
How to order
  1. Click on the green "Back To Get Started" button, then click "Start Consultation" button on the next page.
  2. Fill in our short consultation form.
  3. Choose delivery method and mode of payment.
  4. Our team of expert prescribers will assess whether medication is suitable.
  5. If you get the green light and it is deemed suitable, your order will be processed quickly and efficiently.
Confidential Service

Your privacy is important, Prescription Doctor are committed to keeping your details completely confidential.

This is why we also take steps to conceal your prescription products under two layers of packaging.

Delivery and Packing
Discreet Delivery?

We have a commitment to delivering a discreet service and understand your need for privacy. We ship all orders via a trackable courier using discreet, plain packaging.

Do I Need to Wait in All Day for Delivery?

Once your order is dispatched you will receive a tracking number via sms and email.

Do You Deliver on Weekends?

We deliver medications between Monday and Saturday. You can upgrade to Saturday delivery on Friday.

My Order Hasn’t Arrived What Should I Do?

You should receive a tracking number with your order which you can use this number to track your parcel online. This should give you a clear indication of where your parcel is. If you haven’t received your parcel in the time frame given by our couriers, contact your local depot to find out where it is. You can also contact our support team who will do this for you.

Can I Be Notified by Text?

On checkout you will be asked to leave your mobile number so our courier can text you about the delivery. This is also useful if the courier has problems finding your address. We will not use your mobile number for anything else.

Payment Methods
How Can I Pay for My Order?

You can pay for your order using credit, debit card or via bank transfer.

I Don’t Have a Credit Card, How Can I Pay?

If you don’t have a credit or debit card you can pay via bank transfer. We will give you a unique reference number at checkout along with details of how to make the transfer. Once the money has cleared in our account, we will process your order.

How Do You Keep My Details Safe?

We are a completely secure site and take many measures to ensure your details are kept safe. We understand that you have a right to extreme privacy when purchasing sensitive health medications. All information that you provide to us is stored on our secure servers. Any payment transactions will be encrypted using SSL technology.

Payment and refunds?

You can pay for your order using credit, debit card and bank transfer.

Card Payment: Please notify us that you wish to cancel your order. Your refund will show available In 1 - 3 days.

Bank Transfer: A member of our team will contact you requesting for your bank details. These details are only used to transfer the funds back into your account.

Treatment Information

Table of contents

What Is CosmoCol?

CosmoCol is a laxative medication that is used to treat constipation. It is especially useful for those who have been constipated for a long time.

Those who suffer from faecal impaction – long term constipation that has led to a blockage within the colon or rectum due to the large amount of stools – will also find CosmoCol to be helpful.

Constipation is a common affliction. While it is more common in women - especially during pregnancy - and the elderly, it can happen to anyone for a variety of reasons.

Common causes of constipation include:

  • A low fibre diet
  • Not drinking enough water
  • Medicine (such as opioids)
  • Lack of exercise
  • Pregnancy
  • Ignoring the urge to go to the toilet

Usually, making a change to your diet or lifestyle can help you overcome your constipation. However, if dietary changes have not worked effectively, you may consider laxatives such as CosmoCol.

Before taking any laxatives, it's important to speak to your doctor or a pharmacist to find the most suitable laxative for you. Your doctor or pharmacist will be able to inform you which laxatives are safe and how to take them to relieve your condition.

Laxatives should be used for a short term. If you find that you need to use laxatives regularly, or if laxatives have been ineffective at treating your condition, speak to your doctor.

Where Can I Buy CosmoCol?

You can buy CosmoCol over the counter in the UK from your local pharmacy. If popping down to the pharmacy is inconvenient for you, you can guy CosmoCol online from reputable online pharmacies such as Prescription Doctor.

When you buy CosmoCol online from Prescription Doctor, our pharmacy will package your item in discreet, plain, tamper-proof packaging to ensure your privacy. If your order is approved before 3pm on weekdays, your item will be dispatched the same day for a next-day delivery.

How Does CosmoCol Work?

CosmoCol works by softening the faeces that has been difficult to pass. This should offer relief from constipation as it makes the stools more easily passable.

Due to the electrolytes within this medication, patients taking CosmoCol should not become dehydrated or unwell when using it. If you do feel unwell, you must seek urgent medical assistance.

How Do I Take CosmoCol?

Always take CosmoCol on the instructions of a pharmacist or doctor. CosmoCol comes in sachets and is taken as a drinkable mixture that you need to make up yourself.

Empty one sachet of CosmoCol into a glass and add 125ml of water.

Stir the mixture until the powder has entirely dissolved. Remember, it may take up to two minutes for the powder to completely dissolve, and you should always wait until it has.

Once the powder has dissolved, drink the mixture.

The recommended dose is no more than three sachets in any 24-hour period. CosmoCol can be taken with or without food.

CosmoCol is available in 3 flavours: plain, orange, and lemon & lime.

CosmoCol Side Effects and Cautions

Before you take CosmoCol, it's important to read the patient information leaflet. This leaflet contains instructions on how to store and use CosmoCol, as well as critical information about the safety of the medicine, such as side effects and contraindications.

You can view the patient information leaflet for CosmoCol online here

If you have any doubts about anything in the leaflet, speak to your doctor or a pharmacist for advice.

Who Should Not Take CosmoCol?

You should not take CosmoCol for constipation if you:

  • are allergic to any of the ingredients including sodium chloride, potassium chloride, magrogol 3350, and sodium hydrogen carbonate
  • have a perforated bowel wall
  • have IBS (inflammatory bowel disease), Crohn’s disease, or a similar condition
  • have an intestinal block (ileus)

Who Should Get Medical Advice Before Using CosmoCol?

Those who are pregnant or breastfeeding should seek medical advice before starting a course of CosmoCol.

This medication is suitable for those over the age of 12. For those under 12, a parent or guardian should speak to a doctor or pharmacist for advice.

Side effects

  • Abdominal (stomach) pain
  • Flatulence (wind)
  • Mild diarrhoea
  • Nausea (feeling sick)
  • Soreness of the anus (bottom)
  • Stomach rumbling
  • Swelling of your abdomen (feeling bloated)
  • Vomiting (being sick)

This is not an exhaustive list of side effects. Further information regarding the safety of CosmoCol can be found within the patient information leaflet enclosed with your medicine.

If you experience any side effects, regardless of whether they are listed above or in the patient information leaflet, inform your doctor right away.


Do not take CosmoCol if you are allergic to macrogol 3350, potassium chloride, sodium chloride or any of the other ingredients listed in the patient information leaflet.

If you experience an allergic reaction after taking CosmoCol, top taking the medicine immediately. Seek urgent medical attention by going straight to the nearest accident and emergency department. Remember to take the packaging and any remaining medicine with you so that doctors know exactly what you have taken.

Signs of an allergic reaction include:

  • Chest tightening
  • Dry, red and cracked skin
  • Itchy, red watery eyes
  • Raised, itchy, red rash (hives)
  • Swelling of the lips, tongue, eyes or face
  • Tummy pain, nausea, vomiting or diarrhoea
  • Wheezing

Pregnancy and breastfeeding

If you are pregnant, think you might be pregnant, or breastfeeding, seek advice from your doctor or a pharmacist before you take CosmoCol.

Other safety information

Always speak to your doctor before you buy CosmoCol online from Prescription Doctor.

Please inform our medical team of all medicines you are currently taking, including those prescribed by your doctor, or bought over the counter, as well as health and herbal supplements.

While taking laxatives, it's important to keep hydrated by drinking plenty of water. You should try to drink between 6 to 8 glasses of water throughout the day.

Do not take CosmoCol past the expiry date printed on the packaging. The date refers to the last day of the specified month. For example, "EXP: 03/2025" means the 31st of March 2025.

Never throw away medicines via household or water waste. Take any unwanted or expired medicine to your local pharmacy and ask them dispose of it safely on your behalf.

Always store CosmoCol out of sight and reach from children and pets.

Never share your medicine with anybody else, even if they are experiencing the same symptoms or have the same condition as you.

Frequently asked questions

What should I do if I forget to take CosmoCol when I should?

If you forget to take a dose of CosmoCol then you should take one as soon as you do remember. If it is nearly time for your next dose, wait until the correct time and skip the missed dose. Never take a double dose to make up for missing an earlier one.

Since CosmoCol is a medication to be taken as required (up to three times in a 24-hour period) there are no specific timings for taking it.

What should I do if I take too much CosmoCol?

Too much CosmoCol can cause severe stomach pains and abdominal swelling. It can also lead to diarrhoea and vomiting. If you take too much CosmoCol you should consult your doctor or a pharmacist as soon as possible.

Can I drink alcohol while taking CosmoCol?

You can drink alcohol while taking CosmoCol and alcohol will have no effect on the efficacy of the medication. However, alcohol can be problematic when suffering from constipation and should ideally be avoided.

Will CosmoCol impact my ability to drive or operate machinery?

CosmoCol will not impact your ability to drive or operate machinery.

How long can I take CosmoCol for?

CosmoCol should not be taken for more than two weeks at a time.

How long does CosmoCol take to work?

CosmoCol may take up to 3 days to take effect. If you do not notice an improvement in your condition after a week of taking CosmoCol, speak to your doctor.

Does CosmoCol cause weight loss?

CosmoCol should not be used for weight loss.

Table of contents

What is CosmoCol?

How does CosmoCol work?

How do I take CosmoCol?

CosmoCol side effects and cautions

Frequently asked questions


NHS, 2020. Constipation.

NHS, 2019. Laxatives

Stirling Anglian Pharmaceuticals Ltd, 2015. CosmoCol Plain powder for oral solution: Summary of Product Characteristics

Treatment information

  • Product Name: CosmoCol
  • Manufacturer: Stirling Anglian Pharmaceuticals
  • Active Ingredient(s): Potassium chloride, sodium chloride, sodium hydrogen carbonate, macrogol 3350
  • Administration: Oral
  • Presentation: Powder for oral solution
  • Available Strength: 13.125g Macrogol 3350
  • Exemption: Pharmacy
  • Dosage: 1 sachet mixed with 125ml of water up to 3 times a day.
  • Description: CosmoCol is a laxative used for the treatment of chronic constipation.
  • Drug Class: Laxative
  • Alcohol Consumption: Avoid excessive alcohol consumption as it may exacerbate symptoms
  • When Pregnant: Speak to your doctor before taking CosmoCol if you are pregnant or think you might be pregnant.
  • When Breastfeeding: Speak to your doctor before taking CosmoCol if you are breastfeeding.
  • Price: 5.99 GBP
Click here to view the CosmoCol - Patient Information Leaflet

Authored & Reviewed By

Mohamed Imran Lakhi

Mohamed Imran Lakhi

MPharm - Lead Pharmacist
Imran Lakhi is the superintendent pharmacist and founder at Prescription Doctor. He has been at the core of our team.

Published on: 02/12/2020 Reviewed on: 13/03/2024

Constipation Alternatives



  • No prescription required
  • Available from a UK based pharmacy
View Treatment


  • No prescription required
  • Available from a UK based pharmacy
View Treatment


  • No prescription required
  • Available from a UK based pharmacy
View Treatment


  • No prescription required
  • Available from a UK based pharmacy
View Treatment
Senna Tablets

Senna Tablets

  • No prescription required
  • Available from a UK based pharmacy
View Treatment


  • No prescription required
  • Available from a UK based pharmacy
View Treatment
Lactulose Solution

Lactulose Solution

  • No prescription required
  • Available from a UK based pharmacy
View Treatment
Micralax Micro-Enema

Micralax Micro-Enema

  • No prescription required
  • Available from a UK based pharmacy
View Treatment


  • No prescription required
  • Available from a UK based pharmacy
View Treatment
Glycerin Suppositories

Glycerin Suppositories

  • No prescription required
  • Available from a UK based pharmacy
View Treatment
Cleen Ready-To-Use Enema

Cleen Ready-To-Use Enema

  • Fast acting
  • Relieves constipation
  • Discreet delivery available
View Treatment
Customer Service