Package Leaflet: Information for the User
PENTASA 1 gram prolonged-release tablets
Mesalazine
Read all of this leaflet carefully before you start taking this medicine because it contains important information for you.
Contents of the pack
Pentasa tablets are indicated to help you stay free from new flare-ups of ulcerative colitis.
Ulcerative colitis is an inflammatory bowel disease in which the lining of the intestine is inflamed and develops many small breaks in its surface (ulcers) that can bleed.
Pentasa contains the active ingredient mesalazine, which belongs to a group of medicines called intestinal anti-inflammatory agents that help reduce inflammation and painful symptoms.
Do not take Pentasa tablets:
Warnings and precautions
Talk to your doctor or pharmacist before taking this medicine:
Mesalazine may cause a discoloration of the urine to a reddish-brown color after contact with sodium hypochlorite bleach in the toilet water. This is a chemical reaction between mesalazine and bleach and is harmless.
Be careful with mesalazine:
Severe skin reactions, such as drug reaction with eosinophilia and systemic symptoms (DRESS), Stevens-Johnson syndrome (SSJ), and toxic epidermal necrolysis (NET), have been observed with mesalazine treatment. Stop taking mesalazine and seek medical attention immediately if you notice any of the symptoms related to these severe skin reactions described in section 4.
If you experience severe or recurrent headache, vision changes, or ringing or buzzing in the ears, contact your doctor immediately.
While you are taking this medicine, your doctor will normally perform blood and urine tests to monitor your kidney function, especially at the start of treatment.
Use in people over 65 years:
It should be used with caution in people over 65 years and only in patients with normal kidney function.
Children and adolescents:
There is limited documentation on the effect in children (6-18 years). The dosage will be determined by your doctor.
Using Pentasa tablets with other medicines:
Tell your doctor or pharmacist if you are taking, have recently taken, or might take any other medicines.
This is especially important if you are taking any of the following medicines:
Pregnancy, breastfeeding, and fertility
If you are pregnant or breastfeeding, or think you may be pregnant or are planning to have a baby, ask your doctor or pharmacist for advice before taking this medicine.
There is limited experience with the use of mesalazine during pregnancy and breastfeeding.
Blood disorders have been observed in newborns of mothers treated with this medicine. Newborns may develop allergic reactions after breastfeeding, for example, diarrhea. If the newborn has diarrhea, breastfeeding should be discontinued.
Fertility:
Data on mesalazine in animals show that it has no effect on male or female fertility.
Driving and using machines:
Treatment with Pentasa tablets does not seem to have any influence on the ability to drive and/or use machines.
Follow exactly the instructions for administration of this medicine given by your doctor or pharmacist. If you are unsure, ask your doctor or pharmacist.
The recommended dose is:
Adults:
To help you stay free from new flare-ups of colitis, your doctor may prescribe you 2 grams of mesalazine per day, administered as 2 tablets once a day.
Use in children and adolescents (aged 6 years and above):
For children and adolescents, the dose will be calculated by your doctor based on body weight. The recommended dose in children and adolescents with a body weight of up to 40 kg will be half the usual recommended dose in adults, and for those children and adolescents with a body weight over 40 kg, the dose will be the same as the usual recommended dose in adults.
You should take the tablets whole orally(by mouth). To facilitate administration, they can be suspended in water or orange juice, shaken, and taken immediately.
If you think the effect of this medicine is too strong or too weak, talk to your doctor.
If you take more Pentasa tablets than you should
No cases of overdose have been reported in humans, but if an overdose is suspected, you should immediately consult your doctor or pharmacist.
In case of overdose or accidental ingestion, consult your doctor, pharmacist, or call the Toxicology Information Service, phone 91-562 04 20, indicating the medicine and the amount taken.
If you forget to take Pentasa tablets
Do not take a double dose to make up for forgotten doses.
If you stop taking Pentasa tablets
Your doctor will tell you how long to take Pentasa tablets. Do not stop treatment before, even if you feel better, as symptoms may return if treatment is stopped too soon. Follow your doctor's instructions strictly for the duration of treatment.
If you have any further questions on the use of this product, ask your doctor or pharmacist.
Like all medicines, Pentasa tablets can cause side effects, although not everybody gets them.
Severe side effects:
Very few cases of severe allergic reaction (including severe skin reactions that can affect the skin as a protective barrier of the body) have been reported. The allergic reaction could lead to swelling of the face and neck and/or difficulty breathing or swallowing (angioedema). If this happens, contact your doctor or emergency services immediately.
Tell your doctor immediately if you experience severe or recurrent headache, vision changes, or ringing or buzzing in the ears. These could be symptoms of increased pressure inside your skull (idiopathic intracranial hypertension).
Stop taking mesalazine and seek medical attention immediately if you experience any of the following symptoms:
The following common side effectsaffect between 1 and 10 in every 100 patients treated:
The following rare side effectsaffect between 1 and 10 in every 10,000 patients treated:
The following very rare side effectsaffect less than 1 in 10,000 patients treated:
Frequency not known(cannot be estimated from the available data)
Some of these adverse reactions may also be attributed to the disease itself.
Reporting of side effects:
If you experience any side effects, talk to your doctor or pharmacist. This includes any possible side effects not listed in this leaflet. You can also report side effects directly through the Spanish Medicines and Health Products Agency (AEMPS) website: http://www.notificaram.es. By reporting side effects, you can help provide more information on the safety of this medicine.
Keep this medicine out of the sight and reach of children.
Do not use this medicine after the expiry date which is stated on the carton after “EXP”. The expiry date refers to the last day of that month.
Do not store above 25°C. Store in the original package to protect from light.
Medicines should not be disposed of via wastewater or household waste. Ask your pharmacist how to dispose of medicines no longer required. These measures will help protect the environment.
What Pentasa tablets contain
Appearance and packaging
Pentasa tablets are presented as greyish-brown/ pale brown, oval, speckled tablets, engraved on both sides with: PENTASA.
They are available in double aluminum blisters containing a total of 60 tablets.
Marketing authorization holder and manufacturer
Marketing authorization holder:
Ferring S.A.U
C/ del Arquitecto Sánchez Arcas nº3, 1º
28040 Madrid
Spain.
Manufacturer:
FERRING GmbH
Wittland 11
24109 Kiel, Germany.
Date of last revision of this leaflet: January 2025
Detailed and up-to-date information on this medicine is available on the website of the Spanish Agency for Medicines and Health Products (AEMPS) http://www.aemps.gob.es/
The average price of PENTASA 1 g PROLONGED-RELEASE TABLETS in October, 2025 is around 44.21 EUR. Prices may vary depending on the region, pharmacy, and whether a prescription is required. Always check with a local pharmacy or online source for the most accurate information.