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PENTASA 4 g PROLONGED-RELEASE GRANULES

PENTASA 4 g PROLONGED-RELEASE GRANULES

Ask a doctor about a prescription for PENTASA 4 g PROLONGED-RELEASE GRANULES

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Doctor

Tarek Agami

General medicine10 years of experience

Dr. Tarek Agami is a general practitioner registered in both Portugal and Israel, with broad experience in family and preventive medicine. He offers online consultations for adults and children, providing personalised support for primary care needs, chronic disease management, and everyday health concerns.

Dr. Agami received clinical training and worked in leading medical institutions in Israel (Kaplan Medical Center, Barzilai Medical Center, Wolfson Medical Center) and Portugal (European Healthcare City, Viscura Internacional, Hospital Dr. José Maria Grande, Hospital Vila Franca de Xira). His approach combines international medical standards with individualised attention to each patient.

Main areas of consultation:

  • Diagnosis and treatment of acute and chronic conditions (high blood pressure, diabetes, respiratory infections, cardiovascular symptoms)
  • Evaluation of symptoms and guidance on further diagnostic testing
  • Preventive check-ups and regular health monitoring
  • Medical support during travel or after relocation
  • Treatment adjustments and lifestyle recommendations based on your personal history
Dr. Agami provides medical support for patients using GLP-1 medications (such as Ozempic or Mounjaro) as part of a weight loss strategy. He offers individualised treatment planning, regular follow-up, dose adjustment, and advice on combining medication with sustainable lifestyle changes. Consultations follow the medical standards accepted in Portugal and Israel.

Dr. Agami is committed to evidence-based, patient-centred care, ensuring that each person receives trusted medical support tailored to their health goals.

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Doctor

Nuno Tavares Lopes

Family medicine17 years of experience

Dr. Nuno Tavares Lopes is a licensed physician in Portugal with 17 years of experience in emergency medicine, family and general practice, and public health. He is the Director of Medical and Public Health Services at an international healthcare network and serves as an external consultant for the WHO and ECDC.

  • Emergency care: infections, fever, chest/abdominal pain, minor injuries, paediatric emergencies
  • Family medicine: hypertension, diabetes, cholesterol, chronic disease management
  • Travel medicine: pre-travel advice, vaccinations, fit-to-fly certificates, travel-related illnesses
  • Sexual and reproductive health: PrEP, STD prevention, counselling, treatment
  • Weight management and wellness: personalised weight loss programmes, lifestyle guidance
  • Skin and ENT issues: acne, eczema, allergies, rashes, sore throat, sinusitis
  • Pain management: acute and chronic pain, post-surgical care
  • Public health: prevention, health screenings, long-term monitoring
  • Sick leave (Baixa médica) connected to Segurança Social in Portugal
  • IMT medical certificates for driving licence exchange
Dr. Nuno Tavares Lopes provides medical support for patients using GLP-1 medications (Mounjaro, Wegovy, Ozempic, Rybelsus) as part of a weight loss strategy. He offers individualised treatment planning, regular follow-up, dose adjustment, and advice on combining medication with sustainable lifestyle changes. Consultations follow the medical standards accepted in Europe.

Dr. Lopes also provides interpretation of medical tests, follow-up care for complex patients, and multilingual support. Whether for urgent concerns or long-term care, he helps patients act with clarity and confidence.

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This page is for general information. Consult a doctor for personal advice. Call emergency services if symptoms are severe.
About the medicine

How to use PENTASA 4 g PROLONGED-RELEASE GRANULES

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.

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.

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/

About the medicine

How much does PENTASA 4 g PROLONGED-RELEASE GRANULES cost in Spain ( 2025)?

The average price of PENTASA 4 g PROLONGED-RELEASE GRANULES in December, 2025 is around 95.82 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.

Alternatives to PENTASA 4 g PROLONGED-RELEASE GRANULES in other countries

The best alternatives with the same active ingredient and therapeutic effect.

Alternative to PENTASA 4 g PROLONGED-RELEASE GRANULES in Польща

Dosage form: Таблетки, 1000 мг
Active substance: mesalazine
Importer: FAES Farma S.A.
Prescription required
Dosage form: Супозиторії, 1000 мг
Active substance: mesalazine
Importer: Faes Farma Portugal S.A
Prescription required
Dosage form: Супозиторії, 500 мг
Active substance: mesalazine
Importer: Faes Farma Portugal S.A
Prescription required
Dosage form: Таблетки, 500 мг
Active substance: mesalazine
Importer: FAES Farma S.A.
Prescription required
Dosage form: Гранули, 4 г
Active substance: mesalazine
Manufacturer: Ferring GmbH
Prescription required
Dosage form: Таблетки, 1 г
Active substance: mesalazine
Manufacturer: Ferring GmbH
Prescription not required

Alternative to PENTASA 4 g PROLONGED-RELEASE GRANULES in Україна

Dosage form: таблетки, по 500 мг
Active substance: mesalazine
Manufacturer: Dr. Fal'k Farma GmbH
Prescription required
Dosage form: суспензія, 4 г/60 г
Active substance: mesalazine
Manufacturer: Dr. Fal'k Farma GmbH
Prescription required
Dosage form: супозиторії, по 500 мг
Active substance: mesalazine
Manufacturer: Dr. Fal'k Farma GmbH
Prescription required
Dosage form: супозиторії, по 250 мг
Active substance: mesalazine
Manufacturer: Dr. Fal'k Farma GmbH
Prescription required
Dosage form: супозиторії, по 1000 мг
Active substance: mesalazine
Dosage form: гранули, по 500 мг; по 930 мг
Active substance: mesalazine

Online doctors for PENTASA 4 g PROLONGED-RELEASE GRANULES

Discuss dosage, side effects, interactions, contraindications, and prescription renewal for PENTASA 4 g PROLONGED-RELEASE GRANULES – subject to medical assessment and local rules.

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Doctor

Tarek Agami

General medicine10 years of experience

Dr. Tarek Agami is a general practitioner registered in both Portugal and Israel, with broad experience in family and preventive medicine. He offers online consultations for adults and children, providing personalised support for primary care needs, chronic disease management, and everyday health concerns.

Dr. Agami received clinical training and worked in leading medical institutions in Israel (Kaplan Medical Center, Barzilai Medical Center, Wolfson Medical Center) and Portugal (European Healthcare City, Viscura Internacional, Hospital Dr. José Maria Grande, Hospital Vila Franca de Xira). His approach combines international medical standards with individualised attention to each patient.

Main areas of consultation:

  • Diagnosis and treatment of acute and chronic conditions (high blood pressure, diabetes, respiratory infections, cardiovascular symptoms)
  • Evaluation of symptoms and guidance on further diagnostic testing
  • Preventive check-ups and regular health monitoring
  • Medical support during travel or after relocation
  • Treatment adjustments and lifestyle recommendations based on your personal history
Dr. Agami provides medical support for patients using GLP-1 medications (such as Ozempic or Mounjaro) as part of a weight loss strategy. He offers individualised treatment planning, regular follow-up, dose adjustment, and advice on combining medication with sustainable lifestyle changes. Consultations follow the medical standards accepted in Portugal and Israel.

Dr. Agami is committed to evidence-based, patient-centred care, ensuring that each person receives trusted medical support tailored to their health goals.

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  • Emergency care: infections, fever, chest/abdominal pain, minor injuries, paediatric emergencies
  • Family medicine: hypertension, diabetes, cholesterol, chronic disease management
  • Travel medicine: pre-travel advice, vaccinations, fit-to-fly certificates, travel-related illnesses
  • Sexual and reproductive health: PrEP, STD prevention, counselling, treatment
  • Weight management and wellness: personalised weight loss programmes, lifestyle guidance
  • Skin and ENT issues: acne, eczema, allergies, rashes, sore throat, sinusitis
  • Pain management: acute and chronic pain, post-surgical care
  • Public health: prevention, health screenings, long-term monitoring
  • Sick leave (Baixa médica) connected to Segurança Social in Portugal
  • IMT medical certificates for driving licence exchange
Dr. Nuno Tavares Lopes provides medical support for patients using GLP-1 medications (Mounjaro, Wegovy, Ozempic, Rybelsus) as part of a weight loss strategy. He offers individualised treatment planning, regular follow-up, dose adjustment, and advice on combining medication with sustainable lifestyle changes. Consultations follow the medical standards accepted in Europe.

Dr. Lopes also provides interpretation of medical tests, follow-up care for complex patients, and multilingual support. Whether for urgent concerns or long-term care, he helps patients act with clarity and confidence.

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Dr. Duarte Meneses is a licensed family medicine and general practice doctor based in Portugal, with additional expertise in occupational health. He provides online consultations for adults, offering medical support for both acute symptoms and chronic health conditions.

  • Common symptoms such as fever, sore throat, cough, fatigue, or digestive issues
  • Chronic conditions including hypertension, diabetes, high cholesterol, and thyroid problems
  • Mental health concerns such as stress, sleep issues, anxiety, and burnout
  • Preventive care: health check-ups, lifestyle advice, and follow-up for existing conditions
  • Work-related health questions, sick leave documentation, and medical guidance for returning to work
Dr. Meneses graduated from the University of Beira Interior and has years of experience working with diverse patient populations. He is fluent in Portuguese, English, Spanish, and French.

His approach is friendly, clear, and focused on delivering practical medical advice tailored to each patient’s needs.

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She has conducted research on the genetic background of stroke and is skilled in communicating with patients from diverse cultural backgrounds. Her approach combines clinical expertise with empathy and clear communication.
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  • Hypertension control and cardiovascular disease prevention
  • Interpretation of ECG, blood tests, and Holter monitor results
  • Management of heart failure and coronary artery disease
  • General medical issues: infections, fever, fatigue, gastrointestinal symptoms
  • Guidance on diagnostics, treatment plans, and medication adjustments
Dr. Alhasan’s approach is based on thorough assessment, clear communication, and personalised care – helping patients understand their health and make informed decisions about their treatment.
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  • Preventive care: health check-ups, lifestyle advice, second opinions

Dr. Correa combines medical knowledge with an aesthetic and holistic approach to help patients improve both health and quality of life.

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For five years, Dr Grzelewski served as the Head of two paediatric departments in Poland, managing complex clinical cases and leading multidisciplinary teams. He also worked in medical centres in the United Kingdom, gaining experience across both primary care and specialist environments. With over a decade of telemedicine experience, he has provided online consultations across Europe and is valued for his clear, structured and evidence-based medical guidance.

Dr Grzelewski is actively involved in clinical programmes focused on modern anti-allergic therapies. As a Principal Investigator, he leads research projects on sublingual and oral allergen desensitisation, supporting evidence-based progress in allergy treatment for both children and adults.

In addition to his background in allergology and paediatrics, he completed dermatology studies through the Cambridge Education Group (Royal College of Physicians of Ireland) and a Clinical Endocrinology course at Harvard Medical School. This advanced training enhances his ability to manage skin manifestations of allergies, atopic conditions, urticaria, endocrine-related symptoms and complex immunological reactions.

Patients commonly seek his care for:

  • seasonal and perennial allergies
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  • recurrent infections in children
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Dr Tomasz Grzelewski is known for his clear communication style, structured medical approach and ability to explain treatment options in a concise and accessible way. His multidisciplinary background across allergy, paediatrics, dermatology and endocrinology allows him to provide safe, up-to-date and comprehensive care for patients of all ages.
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  • asthma, COPD and emphysema
  • pneumonia and lung fibrosis
  • gastroenteritis and digestive infections
  • liver conditions, including alcohol-related disease
  • epilepsy, seizures and post-stroke symptoms
  • dementia and cognitive decline
  • anaemia and other haematological changes
  • diabetes, thyroid disorders and pituitary disease
Many patients reach out when they experience new or worsening symptoms, fluctuations in blood pressure, non-severe chest discomfort, breathing symptoms, digestive issues, suspected infections, chronic fatigue or concerns that affect daily life. He also helps patients understand test results, adjust existing treatment plans and navigate long-term health strategies safely and effectively.

When clinically appropriate, Dr. Altaf can also provide health and fitness certificates, including documentation required for physical activity, sports participation or gym use, based on the patient’s health status and medical indications.

Some conditions are not suitable for online care. Severe chest pain, loss of consciousness, uncontrolled bleeding, seizures, major trauma or symptoms suggesting a stroke or heart attack require immediate attention from local emergency services. Dr. Altaf prioritises patient safety and will guide you accordingly if your situation needs urgent in-person care.

In all consultations, Dr. Muhammad Tayyab Altaf focuses on clear communication, accurate diagnosis and patient-centred decision-making. His approach ensures that individuals and families feel informed, supported and confident in their next steps, no matter where they are.

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