DrugABC

UK medicines information — general guidance, not personalised advice.

Colesevelam

Colesevelam binds bile acids in the gut, lowering LDL cholesterol in some people when prescribed. It is occasionally used alongside other glucose-lowering medicines in type 2 diabetes under specialist guidance. Powder sachets or tablets are common formulations.

This medicine is part of the Blood pressure, cholesterol & related category.

Generic name: colesevelam

Quick answers

Short replies to searches people often run before speaking to a clinician. For the overview of what the medicine is used for, see the short summary under the page title above.

  • What is it for?

    Colesevelam binds bile acids in the gut, lowering LDL cholesterol in some people when prescribed.

  • How long does it take to work?

    Onset varies by condition and dose. Your GP or pharmacist can explain what to expect and when to review.

  • What are common side effects?

    Constipation, wind, bloating, or indigestion are common.

  • Can you take paracetamol or ibuprofen with it?

    Ask your GP or pharmacist before taking Colesevelam with paracetamol or ibuprofen. Many adults use paracetamol for short periods when appropriate; NSAIDs such as ibuprofen need extra checks with your other medicines and health conditions.

More about what Colesevelam is used for

Colesevelam binds bile acids in the gut, lowering LDL cholesterol in some people when prescribed. It is occasionally used alongside other glucose-lowering medicines in type 2 diabetes under specialist guidance.

Powder sachets or tablets are common formulations.

How does Colesevelam work, and how long does it take to work?

It prevents bile acid reabsorption, so the liver uses more cholesterol to make new bile acids, which lowers blood cholesterol over time.

It can affect absorption of other tablets taken at the same time.

How and when should you take Colesevelam?

Mix sachets with water as directed and take with meals, or swallow tablets with liquid following the manufacturer timing rules.

Leave several hours between colesevelam and many other medicines — your pharmacist will give a spacing chart.

What are the common side effects of Colesevelam?

Constipation, wind, bloating, or indigestion are common. Taste of the drink can bother some people.

Drinking enough fluid and fibre helps constipation for many.

Serious side effects of Colesevelam — when to get urgent help

Seek help for severe abdominal pain, vomiting, or bowel obstruction symptoms if constipation becomes extreme.

Severe allergic reactions are rare.

What if you miss a dose of Colesevelam?

Take with the next meal if you forget a dose; do not double up two sachets next time without advice.

Who should not take Colesevelam?

Bowel obstruction risk, very high triglycerides, and some swallowing problems need review before use.

Pregnancy and breastfeeding need prescriber advice.

Can you take paracetamol or ibuprofen with Colesevelam? — other interactions

Thyroxine, Warfarin, contraceptive pills, and many other drugs need spacing — this is a major counselling point with pharmacists.

Colesevelam in pregnancy and breastfeeding

Discuss with your prescriber before use in pregnancy or breastfeeding.

Blood tests and monitoring on Colesevelam

Cholesterol and sometimes HbA1c are reviewed. Vitamin levels may be checked long term in some people.

What might your GP prescribe instead of Colesevelam?

Statins, Ezetimibe, or PCSK9 inhibitors may be used if colesevelam is not tolerated.

Reviewed by UK registered pharmacists

Reviewed by UK registered pharmacists for accuracy and clarity. Content is informational only.

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Frequently asked questions about Colesevelam

People also ask — common Google searches

What is Colesevelam used for?
Colesevelam binds bile acids in the gut, lowering LDL cholesterol in some people when prescribed. It is occasionally used alongside other glucose-lowering medicines in type 2 diabetes under specialist guidance. Powder sachets or tablets are common formulations.
How long does Colesevelam take to work?
Onset varies by condition and dose. Your GP or pharmacist can explain what to expect and when to review. Always follow your prescriber’s follow-up plan.
Can you take Colesevelam with paracetamol or ibuprofen?
Ask your GP or pharmacist before taking Colesevelam with Paracetamol or Ibuprofen. Many adults use paracetamol for short periods when appropriate; NSAIDs such as ibuprofen need extra checks with your other medicines and health conditions.
What are the side effects of Colesevelam?
Constipation, wind, bloating, or indigestion are common. Taste of the drink can bother some people. See the sections below for more detail, including serious side effects and when to seek urgent help.
Why must I separate colesevelam from other tablets?
It binds medicines in the gut and stops them being absorbed. Your pharmacist explains a timetable so your other prescriptions still work.
Does colesevelam help blood sugar?
It can modestly lower glucose in some people with type 2 diabetes when added to other treatments — your diabetes team monitors overall control.

Need personalised advice?

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Often used with

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