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 tablets in a continuous manner throughout the entire length of the intestine, regardless of the pH value. Pentasa is used to treat mild and moderate ulcerative colitis and Crohn's disease.
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 haemorrhagic diathesis.
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 being treated with medicines that may affect kidney function, if you are being treated with azathioprine (an immunosuppressant), 6-mercaptopurine (an anticancer and immunosuppressant), or tioguanine (an anticancer), 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 the formation of kidney stones. Symptoms may include pain in the sides of the abdomen and blood in the urine. During treatment with mesalazine, you should drink an adequate amount 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 attention immediately if you experience any of the symptoms of these serious skin reactions, listed in section 4. Rarely, mesalazine has been associated with myocarditis (inflammation of the heart muscle) and pericarditis (inflammation of the lining surrounding the heart). Very rarely, serious blood disorders have been reported. If you experience acute symptoms of intolerance, such as crampy abdominal pain, acute abdominal pain, fever, severe headache, or rash, you should stop treatment and contact your doctor immediately. Usually, before and during treatment, your doctor will order 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 toilet water. This is a harmless chemical reaction between mesalazine and bleach.
Pentasa should not be used in children under 6 years of age. Clinical data on the use of Pentasa in children (aged 6 to 18 years) are limited.
Tell your doctor about all medicines you are taking or have recently taken, and about any medicines you plan to take. In particular, this applies to medicines such as sulfasalazine, azathioprine, 6-mercaptopurine, or tioguanine, warfarin. Pregnancy, breastfeeding, and fertility If you are pregnant or breastfeeding, think you may be pregnant, or plan to have a baby, ask your doctor for advice before taking this medicine. Mesalazine passes through the placenta. Mesalazine passes into breast milk. Driving and using machines Pentasa has not been shown to affect the ability to drive or use machines.
Always take this medicine exactly as your doctor has told you. If you are not sure, ask your doctor. The recommended dose is: Ulcerative colitis, treatment of active disease phase: Adults: the dose is determined individually by the doctor, up to 4 g per day once a day or in divided doses. Children aged 6 and over: the dose is determined individually by the doctor; usually, 30 to 50 mg/kg body weight per day in divided doses. 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 aged 6 and over: the dose is determined individually by the doctor; usually, 15 to 30 mg/kg body weight per day in divided doses. 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 disease phase: Adults: the dose is determined individually by the doctor, up to 4 g per day in divided doses. Children aged 6 and over: the dose is determined individually by the doctor; usually, 30 to 50 mg/kg body weight per day in divided doses. 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 aged 6 and over: the dose is determined individually by the doctor; usually, 15 to 30 mg/kg body weight per day in divided doses. The total dose should not exceed 2 g per day. Pentasa should not be used in children under 6 years of age. 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 flare-up during maintenance treatment with a dose of 4 g per day, alternative treatment should be used. In elderly patients, there is no need to adjust the dose. The medicine is taken orally. The tablets should not be chewed or crushed. The score line on the tablet is only to facilitate breaking the tablet to make it easier to swallow. To facilitate swallowing, the tablet can be broken or placed in a container with a small amount of water or juice, stirred, and the resulting suspension taken immediately. To achieve the desired effect, the recommended doses should be taken regularly and consistently.
In case of overdose, hospital treatment and monitoring of kidney function are recommended.
Do not take a double dose to make up for a missed dose.
Like all medicines, Pentasa 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:
Severe side effects with unknown frequency (cannot be estimated from available data) Seek medical attention immediately
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 unknown(cannot be estimated from 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, Tel: +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 25°C. Do not use this medicine after the expiry date stated on the packaging after the EXP label. 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. One prolonged-release tablet contains 500 mg of mesalazine. The other ingredients are povidone, ethyl cellulose, magnesium stearate, talc, microcrystalline cellulose.
Pentasa is available as prolonged-release tablets. The tablet is white to light brown, speckled, round, 13.5 mm in diameter, with a score line and embossed with "500 mg" on one side and "PENTASA" on the other side. The pack contains 100 tablets.
Ferring GmbH, Wittland 11, D-24109 Kiel, Germany, Manufacturer 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., ul. Szamocka 8, 01-748 Warsaw, Tel.: +48 22 246 06 80, Fax: +48 22 246 06 81, Date of last revision of the leaflet:January 2025
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