Mesalazine
Mesalazine, the active substance of Pentasa, acts locally as an anti-inflammatory agent on the diseased rectal wall.
Pentasa is used to treat ulcerative proctitis.
BEFORE TAKING MESALAZINE, INFORM 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 problems,
if you have stomach or duodenal ulcers,
if you have a bleeding disorder.
Before taking Pentasa, discuss it with your doctor.
Be cautious:
if you are allergic to sulfasalazine,
if you have liver or kidney problems,
if you are taking other medicines that may affect kidney function,
if you are taking azathioprine (a medicine that reduces the activity of the immune system), 6-mercaptopurine (a medicine used to treat cancer and reduce the activity of the immune system), or tioguanine (a medicine used to treat cancer),
if you have lung problems, especially asthma,
if you experience severe or recurring headache, vision disturbances, or ringing or buzzing in the ears, you should contact your doctor immediately.
Taking mesalazine may lead to kidney stones. Symptoms may include pain in the sides of the abdomen and blood in the urine. During mesalazine treatment, you should drink plenty of fluids.
Serious 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 help immediately if you experience any of these serious skin reactions, listed in section 4.
Rarely, mesalazine has been reported to cause heart hypersensitivity reactions (myocarditis and pericarditis).
Very rarely, serious blood disorders have been reported.
If you experience acute intolerance symptoms, such as colicky abdominal pain, 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 a reddish-brown discoloration of urine after contact with sodium hypochlorite bleach in the toilet water. This is a chemical reaction between mesalazine and bleach and is harmless.
Experience with the use of Pentasa in children is limited, and clinical data are restricted.
Tell your doctor about all the medicines you are taking, or have recently taken, and any you plan to take, especially:
sulfasalazine, azathioprine, 6-mercaptopurine, or tioguanine, warfarin.
If you are pregnant, breastfeeding, or think you may be pregnant, or are planning to have a baby, ask your doctor for advice before taking this medicine.
Mesalazine passes into the placenta.
Mesalazine passes into breast milk.
No effect of Pentasa on the ability to drive or use machines has been observed.
Always take this medicine exactly as your doctor has told you. If you are not sure, ask your doctor.
The recommended dose is:
Adults
1 g (one suppository) 1-2 times a day.
No dose adjustment is needed in elderly patients.
The medicine is administered rectally.
In case of overdose, symptomatic treatment in a hospital and monitoring of kidney function are recommended.
Like all medicines, this medicine can cause side effects, although not everybody gets them.
You should stop taking mesalazine and seek medical help immediately if you experience any of the following symptoms:
Severe side effects with unknown frequency (cannot be estimated from the available data)
The following side effectsare common(may affect up to 1 in 10 people):
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):
Frequency not known(cannot be estimated from the available data)
If you experience any side effects, including those not listed in this leaflet, please inform 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.
Reporting side effects will help to gather more information on the safety of this medicine.
Keep this medicine out of the sight and reach of children.
Do not store above 25°C.
Do not use this medicine after the expiry date stated on the packaging after EXP.
The expiry date refers to the last day of that 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. One suppository contains 1 g of mesalazine.
The other ingredients are: povidone, macrogol 6000, magnesium stearate, talc
Pentasa is available as rectal suppositories.
The suppository is oblong, scored, and white to light brown in color.
The pack contains 14 or 28 suppositories.
Marketing authorization holder:
Ferring GmbH
Wittland 11
D-24109 Kiel
Germany
Ferring GmbH
Wittland 11
D-24109 Kiel
Germany
For more detailed information, please contact the representative of the marketing authorization holder.
Poland
Ferring Pharmaceuticals Poland Sp. z o.o.
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
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