Mesalazine
Mesalazine, the active substance of Pentasa, acts locally as an anti-inflammatory agent on the diseased wall of the small and large intestine. Mesalazine is released from the granules in a continuous manner throughout the entire length of the intestine, regardless of pH value. Pentasa is used to treat mild and moderate ulcerative colitis and Crohn's disease.
BEFORE TAKING MESALAZINE, TELL YOUR DOCTOR:
if you are allergic to mesalazine or any of the other ingredients of this medicine (listed in section 6),
if you are allergic to salicylates, such as aspirin,
if you have severe liver or kidney dysfunction,
if you have stomach or duodenal ulcer,
if you have haemorrhagic diathesis.
Before taking Pentasa, discuss it with your doctor.
Be cautious:
if you are allergic to sulfasalazine,
if you have liver or kidney dysfunction,
if you are being treated with medicines that may affect kidney function,
if you are being treated with azathioprine (an immunosuppressive agent), 6-mercaptopurine (an antineoplastic and immunosuppressive agent) or tioguanine (an antineoplastic agent),
if you have lung disorders, especially bronchial asthma,
if you experience severe or recurring headache, vision disturbances or ringing or buzzing in the ears, you should contact your doctor immediately.
Mesalazine may cause kidney stones. Symptoms may include pain in the sides of the abdomen and blood in the urine. During mesalazine treatment, you should drink an adequate amount of fluids.
Severe skin reactions, including drug reaction with eosinophilia and systemic symptoms (DRESS), Stevens-Johnson syndrome (SJS) and toxic epidermal necrolysis (TEN), have been reported with mesalazine treatment. You should stop taking mesalazine and seek medical attention immediately if you experience any of these severe skin reactions, listed in section 4.
Rarely, mesalazine has been reported to cause cardiac hypersensitivity reactions (myocarditis and pericarditis).
Very rarely, serious blood disorders have been reported.
If you experience acute intolerance symptoms, such as abdominal cramps, acute abdominal pain, fever, severe headache or rash, you should stop the treatment and contact your doctor immediately.
Usually, before and during treatment, your doctor will have you undergo blood and urine tests to assess liver, kidney or blood function.
Mesalazine may cause reddish-brown discoloration of urine after contact with sodium hypochlorite bleach in toilet water. This is a chemical reaction between mesalazine and bleach and is harmless.
Pentasa should not be used in children under 6 years of age. Clinical data on the use in children (from 6 to 18 years) are limited.
Tell your doctor about all the medicines you are taking now or have taken recently, and about the medicines you plan to take. In particular, this concerns such medicines as:
sulfasalazine, azathioprine, 6-mercaptopurine or tioguanine, warfarin.
If you are pregnant or breastfeeding, think you may be pregnant or plan to have a child, ask your doctor for advice before taking this medicine.
Mesalazine passes through the placenta.
Mesalazine passes into breast milk.
No effect of Pentasa on the ability to drive and use machines has been observed.
This medicine should always be taken exactly as your doctor has told you. If you are not sure, ask your doctor.
The recommended dose is:
Ulcerative colitis, treatment of active phase of the disease:
Adults:the dose is determined individually by the doctor, up to 4 g per day once a day or in divided doses.
Children from 6 years of age:the dose is determined individually by the doctor; usually, 30 to 50 mg/kg body weight per day in divided doses are used. The maximum dose is 75 mg/kg body weight per day in divided doses. The total dose should not exceed 4 g per day (the maximum dose for adults). Pentasa should not be used in children under 6 years of age.
Ulcerative colitis, maintenance treatment:
Adults:the recommended dose is 2 g once a day.
Children from 6 years of age:the dose is determined individually by the doctor; usually, 15 to 30 mg/kg body weight per day in divided doses are used. The total dose should not exceed 2 g per day. Pentasa should not be used in children under 6 years of age.
Crohn's disease, treatment of active phase of the disease:
Adults:the dose is determined individually by the doctor, up to 4 g per day in divided doses.
Children from 6 years of age:the dose is determined individually by the doctor; usually, 30 to 50 mg/kg body weight per day in divided doses are used. The maximum dose is 75 mg/kg body weight per day in divided doses. The total dose should not exceed 4 g per day (the maximum dose for adults). Pentasa should not be used in children under 6 years of age.
Crohn's disease, maintenance treatment:
Adults:the dose is determined individually by the doctor, up to 4 g per day in divided doses.
Children from 6 years of age:the dose is determined individually by the doctor; usually, 15 to 30 mg/kg body weight per day in divided doses are used. The total dose should not exceed 2 g per day. Pentasa should not be used in children under 6 years of age.
In case of treatment with lower doses than 4 g, the available Pentasa granules for prolonged release of 2 g or 1 g should be used.
In patients with active Crohn's disease who do not respond to treatment with a dose of 4 g per day within 6 weeks, and in patients with Crohn's disease who experience disease relapse during maintenance treatment with a dose of 4 g per day, other treatment should be used.
In elderly patients, there is no need to change the dose.
The granules should not be chewed or crushed.
The contents of the sachet should be poured onto the tongue and swallowed, washed down with water or juice.
The entire contents of the sachet can also be mixed with yogurt and taken immediately, without chewing the granules.
To achieve the desired effect, the recommended doses should be taken regularly and consistently.
In case of overdose, symptomatic treatment in a hospital and monitoring of kidney function are recommended.
A double dose should not be taken to make up for a missed dose.
Like all medicines, this medicine can cause side effects, although not everybody gets them.
You should stop taking mesalazine and seek medical attention immediately if you experience any of the following symptoms:
If you experience acute intolerance symptoms, such as abdominal cramps, acute abdominal pain, fever, severe headache or rash, you should stop the treatment and contact your doctor immediately.
Severe side effects with unknown frequency (cannot be estimated from the available data)
if you experience severe or recurring headache, vision disturbances or ringing or buzzing in the ears. These may be symptoms of increased intracranial pressure (idiopathic intracranial hypertension).
The following side effectsare uncommon(may affect up to 1 in 100 people):
The following side effectsare rare(may affect up to 1 in 1,000 people):
Unknown frequency(cannot be estimated from the available data)
If you experience any side effects, including any not listed in this leaflet, tell your doctor. Side effects can be reported directly to the Department of Drug Safety Monitoring of the Office for Registration of Medicinal Products, Medical Devices and Biocidal Products:
Aleje Jerozolimskie 181C, 02-222 Warsaw
Phone: +48 22 49 21 301
Fax: +48 22 49 21 309
website: https://smz.ezdrowie.gov.pl.
Side effects can also be reported to the marketing authorization holder.
By reporting side effects, you can help provide more information on the safety of this medicine.
Keep the medicine out of the sight and reach of children.
Do not store above 30°C.
Store in the original packaging to protect from light.
Do not use this medicine after the expiry date stated on the packaging after EXP.
The expiry date refers to the last day of the month.
Medicines should not be disposed of via wastewater or household waste. Ask your pharmacist how to dispose of medicines no longer required. This will help protect the environment.
The active substance is mesalazine. 1 sachet of prolonged-release granules contains 4 g of mesalazine.
The other ingredients are: ethylcellulose (40-52 cP), povidone (K 29-32).
Pentasa is available as prolonged-release granules.
The granules are white-grey to light brown in color.
Packaging:
30 sachets containing prolonged-release granules, placed in a cardboard box.
Ferring GmbH
Wittland 11
D-24109 Kiel
Germany
Ferring GmbH
Wittland 11
D-24109 Kiel
Germany
Szamocka 8 Street
01-748 Warsaw
Phone: +48 22 246 06 80, Fax: +48 22 246 06 81
Date of last revision of the leaflet:January 2025
Need help understanding this medicine or your symptoms? Online doctors can answer your questions and offer guidance.