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PENTASA 4 g PROLONGED-RELEASE GRANULES

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About the medicine

How to use PENTASA 4 g PROLONGED-RELEASE GRANULES

Translated with AI

This page provides general information and does not replace a doctor’s consultation. Always consult a doctor before taking any medication. Seek urgent medical care if symptoms are severe.

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Introduction

Package Leaflet: Information for the User

Pentasa 4 g prolonged-release granules

Mesalazine

Read all of this leaflet carefully before you start taking this medicine because it contains important information for you.

  • Keep this leaflet, you may need to read it again.
  • If you have any further questions, ask your doctor or pharmacist.
  • This medicine has been prescribed for you only. Do not pass it on to others. It may harm them, even if their signs of illness are the same as yours.
  • If you get any side effects, talk to your doctor or pharmacist. This includes any possible side effects not listed in this leaflet. See section 4.

Contents of the pack

  1. What Pentasa 4 g is and what it is used for
  2. What you need to know before you take Pentasa 4 g
  3. How to take Pentasa 4 g
  4. Possible side effects
  5. Storage of Pentasa 4 g
  6. Contents of the pack and other information

1. What Pentasa 4 g is and what it is used for

Pentasa 4 g is indicated for the treatment of mild to moderate ulcerative colitis flare-ups and to help maintain you free of new flare-ups.

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 4 g contains granules that slowly release the active ingredient (mesalazine). This helps to reduce inflammation and painful symptoms.

Doctor consultation

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2. What you need to know before you take Pentasa 4 g

Do not take Pentasa 4 g

  • if you are allergic (hypersensitive)to mesalazineor to any of the other components of this medicine (see section 6)
  • if you are allergicto other salicylates, for example, acetylsalicylic acid
  • if you have severe kidney and/or liver problems

Warnings and precautions

Consult your doctor or pharmacist before starting to take Pentasa 4 g:

  • if you are allergic to sulfasalazine(risk of salicylate allergy)
  • if you currently have or have had kidney or liver function impairment
  • if you have a disease that may make you prone to bleeding
  • if you have an active peptic ulcer(stomach or duodenal ulcer)
  • if you are on treatmentthat may affect kidney function, for example, non-steroidal anti-inflammatory drugs (NSAIDs) such as aspirin
  • if you have lung problems, asthma in particular
  • treatment with Pentasa should be interrupted immediately in case of abdominal cramps, abdominal pain, fever, severe headache, and rash
  • kidney stones may occur with the use of mesalazine. Symptoms include pain in the sides of the abdomen and blood in the urine. Make sure to drink a sufficient amount of liquid during treatment with mesalazine.
  • If you have ever suffered from a severe skin rash, skin peeling, blisters, or sores in the mouth after using mesalazine.

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, including 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.

While you are on treatment with this medicine, your doctor will normally perform blood and urine tests to monitor your kidney function, especially at the start of treatment.

Interaction of Pentasa 4 g with other medicines

Tell your doctor or pharmacist if you are using, have recently used, or might use any other medicines.This is especially important if you are taking any of the following medicines:

  • azathioprine(used after transplants or to treat autoimmune diseases)
  • 6-mercaptopurine or thioguanine(chemotherapy, used to treat leukemia)
  • certain medicines that inhibit blood coagulation (medicines for thrombosis or to thin the blood)

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 interrupted.

Driving and using machines:

This medicine is not known to affect the ability to drive and/or use machines.

3. How to take Pentasa 4 g

Follow the instructions for administration of this medicine exactly as indicated by your doctor or pharmacist.If you are in doubt, consult your doctor or pharmacist again.

Adults:

To treat a flare-up of colitis,your doctor will normally prescribe a dose of up to 4 g of mesalazine per day, which can be administered either once a day or divided into two doses. It can be taken as one sachet of Pentasa 4 g or as two sachets of Pentasa 2 g once a day.

Pentasa 1 g can also be used to provide the dose that best suits you.

To help you stay free of new flare-ups,your doctor may prescribe 2 g of mesalazine per day, administered as one sachet of Pentasa 2 g or two sachets of Pentasa 1 g once a day.

Use in children and adolescents:

Children aged 6 years and older

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 granules orally (by mouth),immediately after opening the sachet, as described below. Do not chew the granules.

  1. Open the sachet.
  2. Pour the contents of the sachet onto the tongue and swallow the granules immediately with water or orange juice, making sure that none remain in the mouth.

Or

  1. Mix the entire contents of the sachet with yogurt. Swallow immediately without chewing the granules.
Medicine questions

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If you take more Pentasa 4 g than you should

In case of overdose or accidental ingestion, consult your doctor or pharmacist immediately or call the Toxicology Information Service, phone 91 562 04 20, indicating the medicine and the amount ingested.

If you forget to take Pentasa 4 g

If you have forgotten to take a dose, take it as soon as you remember, and then take the next dose at the usual time. Do not take a double dose to make up for the forgotten dose.

If you have any other questions about the use of this medicine, ask your doctor or pharmacist.

4. Possible side effects

Like all medicines, Pentasa sachets can cause side effects, although not everybody gets them.

Very rare cases of severe allergic reactions, including serious skin reactions (such as Stevens-Johnson syndrome, toxic epidermal necrolysis, and erythema multiforme), 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.

Stop taking mesalazine and seek medical attention immediately if you notice any of the following symptoms: reddish patches, or circular or coin-shaped patches on the chest, often with central blisters, skin peeling, ulcers in the mouth, throat, nose, genitals, and eyes, generalized rash, fever, and swollen lymph nodes. These severe skin reactions are often preceded by fever or flu-like symptoms.

The following side effects are common(affect 1 to 10 users in 100):

  • diarrhea
  • abdominal pain
  • nausea
  • vomiting
  • headache
  • skin rash
  • flatulence (gas)

The following side effects are rare(affect 1 to 10 users in 1,000):

  • inflammation of some areas of the heart (myocarditis and pericarditis) that can cause difficulty breathing and chest pain or palpitations (rapid or irregular heartbeat)
  • inflammation of the pancreas (including symptoms of back and/or stomach pain)
  • increased amylase (an enzyme that helps digest carbohydrates)
  • dizziness
  • increased sensitivity of the skin to sunlight and ultraviolet light (photosensitivity)

The following side effects are very rare(affect less than 1 user in 1,000):

  • anemia and other blood disorders (decrease in the number of certain blood cells, which can cause unexplained bleeding, bruising, fever, or sore throat)
  • liver disorders (symptoms include jaundice (yellowing of the skin and/or eyes) and/or pale stools)
  • kidney disorders (symptoms include blood in the urine and/or edema (swelling due to increased fluid))
  • peripheral neuropathy (a condition that affects the nerves of the hands and feet, including symptoms of tingling and numbness)
  • pulmonary allergic and fibrotic reactions, inflammation of the lining of the lungs, or scarring of the lung (symptoms include cough, bronchospasm, chest discomfort or pain when breathing, difficulty breathing, bloody or excessive sputum)
  • Pancolitis (a type of inflammatory bowel disease (IBD) that affects the entire lining of the large intestine)
  • hair loss (this is reversible)
  • muscle or joint pain
  • inflammation that can affect several parts of the body, such as joints, skin, kidneys, heart, etc. (symptoms include painful joints, fatigue, fever, unexplained or abnormal bleeding (e.g., nosebleeds), bruising, purple discoloration of the skin, spots under the skin (including severe skin reactions and severe burns that can affect the skin as a protective barrier of the body))
  • fluid accumulation around the heart (pericardial effusion) that can cause chest pain or pressure
  • change in urine color
  • semen with low sperm concentration (oligospermia) (this is reversible)
  • severe diarrhea and abdominal pain due to an allergic reaction to this medicine in the intestine
  • occasionally, allergic reactions and fever may occur

Frequency not known (cannot be estimated from the available data)

  • kidney stones and associated kidney pain (see also section 2).

Isolated cases of benign intracranial hypertension (increased fluid around the brain) have been reported in adolescents. Symptoms include headache, nausea, vomiting, and/or visual or auditory distortion.

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 Pharmacovigilance System for Human Use Medicines: http://www.notificaram.es. By reporting side effects, you can help provide more information on the safety of this medicine.

5. Storage of Pentasa 4 g

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 packaging and on the aluminum sachet. The expiry date is the last day of the month stated.

This medicine does not require any special storage conditions.

Medicines should not be disposed of via wastewater or household waste. Place the packaging and any unused medicine in the SIGRE collection point at your pharmacy. If you have any further questions, ask your pharmacist how to dispose of the packaging and any unused medicine. This will help protect the environment.

6. Contents of the pack and other information

Composition of Pentasa sachets

The active substance is mesalazine.

Each sachet contains 4 g of mesalazine.

The other ingredients are ethylcellulose and povidone

Appearance of the product and pack contents

This medicine contains prolonged-release granules. The granules are grayish-white/ pale brown and cylindrical in shape.

This medicine is available in aluminum sachets in packs of:

Sachets 4g: 20, 30, 50, or 100

Marketing authorization holder

FERRING S.A.U

C/ del Arquitecto Sánchez Arcas 3, 1º

Madrid 28040

  • Spain

Manufacturer

Ferring GmbH

Wittland 11

D-24109 Kiel

Germany

This medicine is authorized in the Member States of the European Economic Area under the following names:

Quintasa Sachets: Denmark

Pentasa Sachets: Germany (1g), Ireland, Sweden, United Kingdom (Northern Ireland)

Pentasa Xtend: Germany (2g)

Pentasa: Slovenia, Cyprus, Greece

Pentasa 4 grams prolonged-release granules: Spain

The last revision of this leaflet was in January 2023.

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/

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Anna Biriukova

General medicine 6 years exp.

Dr Anna Biriukova is an internal medicine doctor with clinical experience in cardiology, endocrinology, and gastroenterology. She provides online consultations for adults, offering expert medical support for heart health, hormonal balance, digestive issues, and general internal medicine.

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Endocrinology – Diabetes, thyroid, metabolism:
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Gastroenterology – Digestive health:
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  • Management of chronic digestive disorders and interpretation of tests (endoscopy, ultrasound, labs).
General internal medicine and preventive care:
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Dr Biriukova combines internal medicine with specialist insight, offering clear explanations, personalised treatment plans, and comprehensive care tailored to each patient.
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Bulat Garipov

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Dr. Bulat Garipov is a radiologist with more than 15 years of experience, specializing in magnetic resonance imaging (MRI). Throughout his professional career, he has worked in leading diagnostic imaging centers, both in on-site practice and teleradiology, which has allowed him to develop a broad and versatile approach to radiology.

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Additionally, Dr. Garipov is open to new collaboration opportunities in radiology and teleradiology projects. He offers his expertise in MRI, providing both first and second readings of studies, as well as advanced image interpretation, ensuring accurate and high-quality diagnostics.

You could consult Dr. Bulat Garipov in cases where accurate interpretation of MRI studies or a second expert opinion is required. His expertise is especially valuable in cases of suspected neurological conditions, back and joint pain, vascular disorders, as well as in the diagnosis of abdominal and pelvic diseases. The doctor also provides support in complex or unclear clinical situations, including the review of previously performed studies, which helps improve diagnostic accuracy and determine the optimal treatment strategy. A teleradiology format is available, allowing you to receive a professional opinion remotely.

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Dmytro Horobets

Family medicine 7 years exp.

Dr. Dmytro Horobets is a licensed family medicine physician in Poland, specialising in endocrinology, diabetology, obesity management, gastroenterology, pediatrics, general surgery, and pain medicine. He offers online consultations for adults and children, providing personalised medical support for a wide range of acute and chronic health concerns.

Areas of expertise:

  • Endocrinology: diabetes type 1 and type 2, prediabetes, thyroid disorders, metabolic syndrome, hormonal imbalance.
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  • Gastroenterology: acid reflux (GERD), gastritis, irritable bowel syndrome (IBS), liver and biliary conditions.
  • Pediatric care: infections, respiratory symptoms, digestive issues, growth and development monitoring.
  • General surgery support: pre- and post-surgical consultations, wound care, rehabilitation.
  • Pain management: chronic and acute pain, back pain, joint pain, post-traumatic pain syndromes.
  • Cardiovascular health: hypertension, cholesterol control, risk assessment for heart disease.
  • Preventive medicine: regular check-ups, health screenings, long-term management of chronic conditions.

Dr. Horobets combines evidence-based medicine with a patient-centred approach. He carefully evaluates each patient’s medical history and symptoms, offering clear explanations and structured treatment plans adapted to individual needs.

Whether you need help managing diabetes, tackling weight-related health issues, interpreting lab results, or receiving general family medicine support, Dr. Horobets provides professional online care tailored to your specific health goals.

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Alexander Nazarchuk

Allergology 7 years exp.

Dr. Alexander Nazarchuk is a physician specialising in allergology and internal medicine. He provides online consultations for adults, following the principles of evidence-based medicine — no outdated treatments or unnecessary tests, with clear explanations and a personalised approach. He helps patients with a wide range of allergic and therapeutic conditions, from common day-to-day complaints to complex cases involving allergies, gastrointestinal issues, cardiovascular concerns, respiratory symptoms, and more.

You can consult Dr. Nazarchuk for:

  • Test interpretation and guidance on diagnostic plans.
  • Allergic rhinitis, hay fever, bronchial asthma (including severe cases).
  • Food and drug allergies, skin rashes, angioedema.
  • Atopic dermatitis, urticaria, contact allergies.
  • Allergen-specific immunotherapy (AIT) – initiation and ongoing management.
  • Abdominal pain, bloating, changes in bowel habits, nausea, heartburn.
  • High blood pressure and adjustment of baseline antihypertensive therapy.
  • Hyperlipidaemia and elevated cholesterol.
  • Cough, nasal congestion, fever, sore throat.
  • Anaemia, including iron deficiency and related conditions.
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During consultations, Dr. Nazarchuk takes a thorough, structured approach — analysing symptoms, identifying potential causes, and helping patients make informed decisions. Whether treatment, further investigation, or monitoring is needed, he explains each step clearly so you understand your health and how best to manage it.

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Sviatoslav Chekhun

Oncology 13 years exp.

Dr. Sviatoslav Chekhun is a medical oncologist with international clinical and research experience, specializing in modern medical oncology and a personalized approach to cancer treatment.

Currently (since 2025), he works as a Medical Oncologist at Institut Català d’Oncologia (Girona, Spain). Previously, he completed his residency in Medical Oncology and was involved in clinical research at Hospital Universitari Germans Trias i Pujol.

Dr. Chekhun has a strong academic and scientific background. He served as a lecturer in Internal Medicine at O.O. Bohomolets National Medical University and conducted research in experimental oncology at the R.E. Kavetsky Institute of Experimental Pathology, Oncology and Radiobiology.

Earlier in his career, he worked as a medical oncologist at the Kyiv City Clinical Oncological Center and contributed to regulatory evaluation of medicinal products at the State Expert Center of the Ministry of Health of Ukraine.

When to consult Dr. Chekhun:

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  •  to obtain a second opinion on an existing treatment plan 
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  •  in case of doubts about treatment strategy or disease progression 

Consultation format

Dr. Chekhun provides online consultations, where you can receive:

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Important:
Prescription and monitoring of medications must be carried out by your treating physician in an in-person (offline) setting. An online consultation does not replace a face-to-face visit but helps you make more informed decisions about your treatment.

Dr. Sviatoslav Chekhun combines clinical practice, research, and international experience, enabling him to provide patients with modern, evidence-based approaches in oncology.

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Frequently Asked Questions

Is a prescription required for PENTASA 4 g PROLONGED-RELEASE GRANULES?
PENTASA 4 g PROLONGED-RELEASE GRANULES requires a prescription in Spain. You can check with a doctor online whether this medicine may be appropriate for your situation.
What is the active substance in PENTASA 4 g PROLONGED-RELEASE GRANULES?
The active ingredient in PENTASA 4 g PROLONGED-RELEASE GRANULES is mesalazine. This information helps identify medicines with the same composition but different brand names.
How much does PENTASA 4 g PROLONGED-RELEASE GRANULES cost in pharmacies?
The average pharmacy price for PENTASA 4 g PROLONGED-RELEASE GRANULES is around 95.82 EUR. Prices may vary depending on the manufacturer and dosage form.
Who manufactures PENTASA 4 g PROLONGED-RELEASE GRANULES?
PENTASA 4 g PROLONGED-RELEASE GRANULES is manufactured by Ferring S.A.. Pharmacy brands and packaging may differ depending on the distributor.
Which doctors can assess the use of PENTASA 4 g PROLONGED-RELEASE GRANULES online?
Doctors such as Family doctors, Psychiatrists, Dermatologists, Cardiologists, Endocrinologists, Gastroenterologists, Pulmonologists, Nephrologists, Rheumatologists, Hematologists, Infectious disease physicians, Allergists, Geriatricians, Paediatricians, Oncologists may assess whether PENTASA 4 g PROLONGED-RELEASE GRANULES is appropriate, depending on your situation and local regulations. You can book an online consultation to discuss your symptoms and possible next steps.
What are the alternatives to PENTASA 4 g PROLONGED-RELEASE GRANULES?
Other medicines with the same active substance (mesalazine) include ASACOL 1 G SUPPOSITORIES, ASACOL 1600 mg GASTRO-RESISTANT TABLETS, ASACOL 400 mg GASTRO-RESISTANT TABLETS. These may have different brand names or formulations but contain the same therapeutic ingredient. Always consult a doctor before switching or starting a new medicine.
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