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Chemist Prices

Mesalamine: Price, Dosage & Where to Buy

Mesalamine appears on this page as a medication. Listed status: Prescription-only medicine (POM).

This page collects reference details and legal purchase options in one place. Under UK rules, Mesalamine is dispensed only against a prescription.

Supply shifts from year to year, so treat the figures here as a snapshot, not a promise. Scroll down for forms, geography and the FAQ section.

Facts

Active ingredient
mesalamine
Forms
Prescription-only medicine (POM)
Licensing status not on file

No generic version on file

Mesalamine price estimates, the UK-licensed equivalent

Estimate, not a quote

  • 0.375 g Prescription-only medicine (POM)

    £0.36 per capsule

    N/A

    Price estimate

    Where to buy
  • 1.2 g Prescription-only medicine (POM)

    £0.59 per tablet

    N/A

    Price estimate

    Where to buy
  • 250 mg Prescription-only medicine (POM)

    £2.20 per capsule

    N/A

    Price estimate

    Where to buy
  • 375 mg Prescription-only medicine (POM)

    £0.36 per capsule

    N/A

    Price estimate

    Where to buy
  • 400 mg Prescription-only medicine (POM)

    £2.04 per capsule

    N/A

    Price estimate

    Where to buy
  • 500 mg Prescription-only medicine (POM)

    £2.63 per capsule

    N/A

    Price estimate

    Where to buy
  • 800 mg Prescription-only medicine (POM)

    £3.05 per tablet

    N/A

    Price estimate

    Where to buy
  • 1000 mg Prescription-only medicine (POM)

    £0.97 per unit

    N/A

    Price estimate

    Where to buy
  • 4 g/60 mL Prescription-only medicine (POM)

    £0.07 per mL

    N/A

    Price estimate

    Where to buy
£0.36 0.375 g £0.59 1.2 g £2.20 250 mg £0.36 375 mg £2.04 400 mg £2.63 500 mg £3.05 800 mg £0.97 1000 mg
Estimated price per tablet or capsule by strength
All forms and prices
Price estimates by strength
Forms Price per unit
0.375 g £0.36 / capsule
1.2 g £0.59 / tablet
250 mg £2.20 / capsule
375 mg £0.36 / capsule
400 mg £2.04 / capsule
500 mg £2.63 / capsule
800 mg £3.05 / tablet
1000 mg £0.97 / unit
4 g/60 mL £0.07 / mL

as of Oct 2, 2026 · Pricing methodology

Figures shown are an estimate, assembled from public pricing references for the UK, not a binding quote. Real-world prices depend on the pharmacy you choose and your location, so confirm the exact price with the pharmacy before you buy. A price well below the listed range should be treated as a red flag for a counterfeit or unlicensed seller.

This is a prescription-only medicine (POM). A valid UK prescription from a UK-registered prescriber is required before a pharmacy can dispense it.

Fill it at a pharmacy registered with the GPhC (Great Britain) or the PSNI (Northern Ireland).

Mesalamine is regulated as a prescription-only medicine under current UK rules. It can only be dispensed given a valid UK prescription on record.

If you do not have a current prescription, reach out to your GP or a UK-registered clinician before you can collect it. The prescriber's registration is usually verified before the medicine is supplied, as part of routine dispensing checks.

About Mesalamine

Mesalamine is an aminosalicylate medicine used mainly for mildly to moderately active ulcerative colitis. It helps induce remission and maintain remission in adults, and treats active ulcerative colitis in eligible children. Mesalamine is a prescription medicine in the United Kingdom, and generic versions have been available since 2004-09-17.

How Mesalamine works

Mesalamine belongs to the aminosalicylate class. It acts mainly on the lining of the bowel, where it reduces inflammatory activity and the production of chemical signals that help sustain inflammation. This can lessen inflammation associated with ulcerative colitis and help the bowel lining recover.

Delayed-release tablets are designed to release mesalamine further along the digestive tract, helping deliver the medicine towards the colon. The exact way mesalamine produces its full clinical effect is not completely defined, but its local anti-inflammatory action is central to its use in ulcerative colitis.

What Mesalamine is used for

Mesalamine is used for mildly to moderately active ulcerative colitis, a condition that can cause inflammation in the bowel. In adults, it is used both to induce remission, meaning to help settle active disease, and to maintain remission after symptoms have improved. It is also indicated for treating mildly to moderately active ulcerative colitis in paediatric patients weighing at least 24 kg who can swallow tablets whole.

The delayed-release tablet label does not establish safety and effectiveness for patients weighing less than 24 kg. The medicine is used as part of treatment directed by a clinician, with monitoring that may include kidney function checks.

Key warnings

  • Known or suspected hypersensitivity to salicylates, aminosalicylates, or any ingredient is a contraindication
  • Kidney function should be assessed before treatment and periodically during treatment
  • Discontinue if kidney function deteriorates
  • Worsening cramping, acute abdominal pain, bloody diarrhoea, fever, headache, or rash may indicate acute intolerance syndrome
  • Stop and seek immediate evaluation if a hypersensitivity reaction is suspected
  • Assess risks and benefits in known liver impairment
  • Avoid in pyloric stenosis or another upper gastrointestinal tract obstruction
  • Maintain hydration and take precautions against photosensitivity

Dosage from the label

The label lists oral capsule strengths of 250 mg and 500 mg, delayed-release capsules of 400 mg, extended-release capsules of 0.375 g, 250 mg, 375 mg, and 500 mg, delayed-release tablets of 1.2 g and 800 mg, and rectal products of 4 g/60 mL and 1000 mg. The usual starting dose is 2.4 g to 4.8 g once daily for induction of remission in adults. The usual starting dose is 2.4 g once daily for maintenance of remission in adults.

The label lists treatment for paediatric patients weighing at least 24 kg who can swallow tablets whole, with weight-based doses during Week 0 to Week 8 and after Week 8. The label lists swallowing delayed-release tablets whole, with food, and drinking an adequate amount of fluids. The label lists renal function assessment before treatment and periodically during treatment.

Main interactions

  • NSAIDs and other nephrotoxic agents may increase the risk of kidney toxicity
  • Azathioprine may increase the risk of blood disorders when used with mesalamine
  • 6-mercaptopurine may increase the risk of blood disorders when used with mesalamine
  • Other drugs known to cause myelotoxicity may increase the risk of blood disorders
  • Mesalamine may cause falsely elevated urinary normetanephrine results with a particular laboratory method

Storage

Store at 20°C to 25°C (68°F to 77°F). Keep the tablets in a tight, light-resistant container and out of the reach of children.

The label states that the unit dose package is not child resistant and is intended for institutional use only. Store as directed on the label to maintain quality.

Missed dose

A missed dose means the scheduled dose was not taken at the intended time. General pharmacy advice is to follow the prescriber’s instructions and avoid taking extra medicine to compensate unless a healthcare professional specifically advises this.

If several doses are missed, or if ulcerative colitis symptoms worsen, a doctor or pharmacist should be contacted. Keeping to the prescribed schedule supports treatment intended to induce or maintain remission.

Pregnancy and breastfeeding

Published data have not reliably shown an association between mesalamine and major birth defects, miscarriage, or adverse maternal or fetal outcomes. Increased ulcerative colitis activity is associated with adverse pregnancy outcomes, including preterm delivery, low birth weight, and small-for-gestational-age infants.

During breastfeeding, mesalamine and its metabolite are present in human milk in small amounts, and diarrhoea has been reported in breastfed infants. A caregiver should monitor a breastfed infant for diarrhoea and discuss treatment with a doctor or pharmacist.

Pharmacies by area for Mesalamine (UK-licensed equivalent)

Pharmacies near you

Use your location to open the pharmacies closest to you and ask them about Mesalamine, the UK-licensed medicine with the same active ingredient.

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Frequently asked questions

What is mesalamine used for?

Mesalamine is used for mildly to moderately active ulcerative colitis. In adults, it is used to induce remission and maintain remission. It also treats active ulcerative colitis in paediatric patients weighing at least 24 kg who can swallow tablets whole.

Does mesalamine require a prescription in the United Kingdom?

Mesalamine is a prescription medicine in the United Kingdom. A prescription from an appropriate healthcare professional is required. A pharmacist can provide advice about obtaining it legally.

How much does mesalamine cost?

Prices are not fixed and can vary between pharmacies and formulations. This page can show an approximate price estimate rather than a fixed amount. A registered online pharmacy can confirm the actual price and prescription requirements.

How do I find Mesalamine near me?

Use the map and city pages on this site to find a location near you and ask them about Mesalamine. Availability is not guaranteed at any single pharmacy, so call ahead.

First published October 2, 2026 · Last updated · Report an error on this page