Background pattern
ONDANSETRON RATIO 4 mg FILM-COATED TABLETS

ONDANSETRON RATIO 4 mg FILM-COATED TABLETS

Ask a doctor about a prescription for ONDANSETRON RATIO 4 mg FILM-COATED TABLETS

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 ONDANSETRON RATIO 4 mg FILM-COATED TABLETS

Introduction

Package Leaflet: Information for the Patient

Ondansetron ratio 4mg film-coated tablets EFG

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 and other information

  1. What is Ondansetron ratio and what is it used for
  2. What you need to know before you take Ondansetron ratio
  3. How to take Ondansetron ratio
  4. Possible side effects
  5. Storage of Ondansetron ratio

Contents of the pack and further information

1. What is Ondansetron ratio and what is it used for

Ondansetron belongs to a group of medicines called antiemetics, which prevent vomiting and nausea.

Ondansetron in tablets is used to:

  • prevent nausea and vomiting caused by:
  • chemotherapy in the treatment of cancer in adults and children over 6 months of age.
  • radiotherapy in the treatment of cancer in adults.
  • prevent post-operative nausea and vomiting in adults.

2. What you need to know before you take Ondansetron ratio

Do not take Ondansetron ratio

  • If you are allergic (hypersensitive) to ondansetron or any of the other ingredients of this medicine (listed in section 6).
  • If you have had an allergic reaction to another medicine similar to ondansetron, such as granisetron, tropisetron, or dolasetron.
  • If you are taking apomorphine (used to treat Parkinson's disease).

Warnings and precautions

Consult your doctor or pharmacist before taking this medicine if:

  • You have liver problems.
  • You have intestinal obstruction or severe constipation.
  • You have had intestinal or tonsil surgery.
  • You have had heart problems, including irregular heartbeats (arrhythmias).
  • You have problems with your blood salt levels, such as potassium, sodium, or magnesium.

Taking Ondansetron ratio with other medicines

Tell your doctor if you are taking, have recently taken, or might take any of the following medicines:

  • Phenytoin (used to treat epilepsy).
  • Carbamazepine (used to treat epilepsy).
  • Rifampicin (used to treat tuberculosis).
  • Tramadol (used to relieve mild to moderate pain).
  • Medicines that affect the heart (such as haloperidol or methadone).
  • Medicines used to treat irregular heart rhythms (antiarrhythmics).
  • Beta-blocker medicines (used to treat heart problems, eye problems, anxiety, or to prevent migraines).
  • Cancer medicines (especially anthracyclines).
  • Medicines used to treat infections (erythromycin, ketoconazole).

While taking ondansetron, if you are going to have a blood test to check your liver function, make sure your doctor knows that you are taking this medicine, as it may affect the results of these tests.

Pregnancy and breastfeeding

Ondansetron ratio should not be used during the first trimester of pregnancy. This is because Ondansetron ratio may slightly increase the risk of a baby being born with a cleft lip and/or cleft palate. If you are pregnant, think you may be pregnant, or are planning to have a baby, ask your doctor or pharmacist for advice before taking Ondansetron ratio. If you are a woman of childbearing age, you are advised to use an effective method of birth control.

Do not breastfeed if you are taking ondansetron, as small amounts of ondansetron pass into breast milk. Ask your doctor for advice.

Driving and using machines

Treatment with ondansetron does not affect your ability to drive or use machines.

Ondansetron ratio contains lactose

This medicine contains lactose. If your doctor has told you that you have an intolerance to some sugars, contact them before taking this medicine.

Ondansetron ratio contains sodium

This medicine contains less than 1 mmol of sodium (23 mg) per film-coated tablet; this is essentially "sodium-free".

3. How to take Ondansetron ratio

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

The tablets should be swallowed whole, preferably with the help of a glass of water. The recommended dose is:

For the treatment of nausea and vomiting induced by chemotherapy and radiotherapy

  • Adults (including the elderly):

8 mg taken 1 to 2 hours before chemotherapy or radiotherapy, followed by 8 mg taken 12 hours later. 24 hours after chemotherapy or radiotherapy, it can be taken for up to 5 days, 8 mg twice a day.

  • Children (over 6 months) and adolescents

Ondansetron can be administered initially as a single intravenous injection 15 minutes before chemotherapy, followed by tablets that can be taken 2 to 3 times a day for up to 5 days after chemotherapy. The dose of the tablets will depend on your body weight and will be calculated by your doctor.

For the prevention of post-operative nausea and vomiting

  • Adults (including the elderly):

A dose of 16 mg can be taken 1 hour before anesthesia.

Alternatively, a dose of 8 mg can be taken 1 hour before anesthesia, followed by two more doses of 8 mg at 8-hour intervals.

  • Children (over 1 month) and adolescents

An intravenous injection containing ondansetron is recommended.

Patients with liver problems

The total daily dose should not exceed 8 mg.

Ondansetron should start working 1 to 2 hours after taking the dose. If you vomit the dose within the first hour, take another dose. Otherwise, continue taking your tablets as directed, but do not take more than your doctor has recommended. If you continue to feel sick, you should inform your doctor.

If you take more Ondansetron ratio than you should

If you or your child take more ondansetron than you should, talk to your doctor or go to the nearest hospital immediately. Take the medicine with you.

An overdose can cause temporary vision problems, severe constipation, dizziness, or fainting.

Take this leaflet, any remaining tablets, and the packaging to the hospital or doctor so they know what tablets you have taken.

In case of overdose or accidental ingestion, contact the Toxicology Information Service, phone 91-562 04 20, indicating the medicine and the amount ingested.

If you forget to take Ondansetron ratio

If you forget to take a tablet and feel sick or vomit, take one as soon as you remember and continue as before. If you forget to take a tablet and do not feel sick, then wait until the next dose as directed. Take the missed doses at the correct time.

If you stop taking Ondansetron ratio

Do not stop taking ondansetron without consulting your doctor first, even if you feel better.

If you have any further questions on the use of this product, ask your doctor or pharmacist.

4. Possible side effects

Like all medicines, this medicine can cause side effects, although not everybody gets them.

If you experience any of the following, stop taking the tablets and inform your doctor immediately or go to the casualty department of your nearest hospital:

  • An allergic reaction that causes swelling of the face, lips, tongue, or throat, difficulty breathing or swallowing, skin rash.
  • Collapse.

Other side effects include:

Very common(affect more than 1 in 10 people)

  • Headache.

Common(affect up to 1 in 10 people)

  • Feeling of warmth or flushing.
  • Constipation.
  • Changes in liver function test results (if you take ondansetron tablets with a medicine called cisplatin; otherwise, this side effect is uncommon).

Uncommon(affect up to 1 in 100 people)

  • Hiccups.
  • Low blood pressure, which can make you feel weak or dizzy.
  • Irregular heartbeat or chest pain.
  • Seizures.
  • Unusual body movements, agitation.

Rare(affect up to 1 in 1,000 people)

  • Feeling dizzy or lightheaded.
  • Blurred vision.
  • Changes in heart rhythm (sometimes causing loss of consciousness).

Very rare(affect up to 1 in 10,000 people)

  • Poor vision or temporary loss of vision, which usually returns within 20 minutes.

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

  • Sudden chest pain or chest tightness (myocardial ischemia).

Reporting of side effects:

If you get any side effects, talk to your doctor, pharmacist, or nurse. This includes any possible side effects not listed in this leaflet. You can also report side effects directly via the Spanish Medicines Agency's website: www.notificaram.es. By reporting side effects, you can help provide more information on the safety of this medicine.

5. Storage of Ondansetron ratio

Keep this medicine out of the sight and reach of children.

No special storage conditions are required.

Do not use this medicine after the expiry date which is stated on the blister and carton after EXP. The expiry date is the last day of the month shown.

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.

No special storage conditions are required.

6. Contents of the pack and further information

Composition of Ondansetron ratio

  • The active substance is ondansetron. Each tablet contains 4 mg of ondansetron (as ondansetron hydrochloride dihydrate).
  • The other ingredients (excipients) are:
  • Core of the tablet: lactose monohydrate, sodium starch glycolate (type A), microcrystalline cellulose, pregelatinized starch, magnesium stearate.
  • Coating: hypromellose, titanium dioxide (E171), macrogol, and yellow iron oxide (E172).

Appearance of the product and pack contents

  • Ondansetron ratio 4 mg is presented as film-coated tablets, oblong, yellow, with the number "4" engraved on one face and smooth on the other.
  • Ondansetron ratio 4 mg film-coated tablets are available in pack sizes of 6 and 15 film-coated tablets.

Not all pack sizes may be marketed.

Marketing authorisation holder and manufacturer:

Marketing authorisation holder

Teva Pharma, S.L.U.

C / Anabel Segura, 11 Edificio Albatros B, 1ª Planta

Alcobendas, 28108 Madrid (Spain)

Manufacturer

Teva Pharmaceutical Works Company Ltd

Pallagi Street 13

H-4042 Debrecen

Hungary

Or

Pharmachemie B.V.

Swensweg 5, Postbus 552, 2003 RN Haarlem

Netherlands

Or

Merckle GmbH

Ludwig-Merckle-Strasse 3

89143 Blaubeuren

Germany

Date of last revision of this leaflet:February 2022

"Detailed information on this medicine is available on the website of the Spanish Agency for Medicines and Health Products (AEMPS) http://www.aemps.gob.es/"

Alternatives to ONDANSETRON RATIO 4 mg FILM-COATED TABLETS in other countries

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

Alternative to ONDANSETRON RATIO 4 mg FILM-COATED TABLETS in Polska

Dosage form: Roztwór, 0,16 mg/ml
Active substance: ondansetron
Prescription required
Dosage form: Roztwór, 0,08 mg/ml
Active substance: ondansetron
Prescription required
Dosage form: Roztwór, 2 mg/ml
Active substance: ondansetron
Manufacturer: AS Kalceks
Prescription required
Dosage form: Roztwór, 8 mg
Active substance: ondansetron
Importer: Accord Healthcare Polska Sp. z o.o. Accord Healthcare Single Member S.A. Laboratori Fundació Dau Pharmadox Healthcare Ltd.
Prescription required
Dosage form: Roztwór, 4 mg
Active substance: ondansetron
Importer: Accord Healthcare Polska Sp. z o.o. Accord Healthcare Single Member S.A. Laboratori Fundació Dau Pharmadox Healthcare Ltd.
Prescription required
Dosage form: Roztwór, 0,16 mg/ml
Active substance: ondansetron
Manufacturer: B. Braun Medical S.A.
Prescription required

Alternative to ONDANSETRON RATIO 4 mg FILM-COATED TABLETS in Ukraina

Dosage form: solution, 2 mg/ml in 2 ml or 4 ml ampoules
Active substance: ondansetron
Prescription required
Dosage form: tablets, 8 mg
Active substance: ondansetron
Manufacturer: TOV "KUSUM FARM
Prescription required
Dosage form: tablets, 4 mg
Active substance: ondansetron
Manufacturer: TOV "KUSUM FARM
Prescription required
Dosage form: solution, 4 mg/5 ml
Active substance: ondansetron
Manufacturer: TOV "KUSUM FARM
Prescription required
Dosage form: solution, 2 mg/ml; 2 ml (4 mg) or 4 ml (8 mg)
Active substance: ondansetron
Prescription required
Dosage form: solution, 2 mg/ml; 2 ml or 4 ml in ampoule
Active substance: ondansetron
Prescription required

Online doctors for ONDANSETRON RATIO 4 mg FILM-COATED TABLETS

Discuss dosage, side effects, interactions, contraindications, and prescription renewal for ONDANSETRON RATIO 4 mg FILM-COATED TABLETS – subject to medical assessment and local rules.

0.0(0)
Doctor

Abdullah Alhasan

General medicine10 years of experience

Dr. Abdullah Alhasan is a physician specialising in cardiology and general medicine, with international clinical experience and a commitment to evidence-based care. He offers online consultations for adults, focusing on both acute symptoms and long-term health management.

Main areas of consultation:

  • Chest pain, shortness of breath, heart palpitations, high blood pressure
  • 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.
CameraBook a video appointment
€69
Today04:20
Today04:35
Today04:50
Today05:05
Today05:20
More times
0.0(1)
Doctor

Khrystyna Habrykevych

Gastroenterology6 years of experience

Dr Khrystyna Habrykevych is a gastroenterologist providing online consultations for adults with digestive and abdominal health concerns. She helps patients understand the causes of their symptoms, interpret test results, and choose appropriate next steps – whether it’s further investigation, treatment, or lifestyle adjustments.

Common reasons for consultation include:

  • abdominal pain, cramps, discomfort, painful bowel movements
  • heartburn, acid reflux, burping, bitter taste in the mouth
  • bloating, excessive gas, nausea or vomiting
  • diarrhoea, constipation, difficulty passing stool
  • unexplained changes in weight or appetite
  • concern about gut health or long-term digestive issues
  • changes in lab results, questions about test interpretation
  • digestive system cancer screening and prevention
  • general digestive check-ups and health assessments
Dr Habrykevych follows evidence-based medical standards and adapts each consultation to the patient’s individual situation. The online format allows for timely medical support without the need for an in-person visit.
CameraBook a video appointment
€60
Today06:05
December 2806:00
January 406:00
January 1106:00
January 1806:00
More times
5.0(7)
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.

CameraBook a video appointment
€69
Today07:00
Today07:25
Today07:50
Today08:15
Today08:40
More times
0.0(0)
Doctor

Hocine Lokchiri

General medicine20 years of experience

Dr. Hocine Lokchiri is a French consultant with over 20 years of experience in General and Emergency Medicine. He works with adults and children, helping patients with urgent symptoms, infections, sudden health changes and everyday medical concerns that require timely evaluation. His background includes clinical practice in France, Switzerland and the United Arab Emirates, which allows him to navigate different healthcare systems and manage a wide range of conditions with confidence. Patients value his calm, structured approach, clear explanations and evidence-based decision-making.

Online consultations with Dr. Lokchiri are suitable for many situations when someone needs quick medical guidance, reassurance or a clear next step. Common reasons for booking include:

  • fever, chills, fatigue and viral symptoms
  • cough, sore throat, nasal congestion, breathing discomfort
  • bronchitis and mild asthma flare-ups
  • nausea, diarrhoea, abdominal pain, digestive infections
  • rashes, allergic reactions, redness, insect bites
  • muscle or joint pain, mild injuries, sprains
  • headache, dizziness, migraine symptoms
  • stress-related symptoms, sleep disturbances
  • questions about test results and treatment plans
  • management of chronic conditions in stable phases
Many patients reach out when symptoms appear suddenly and cause concern, when a child becomes unwell unexpectedly, when a rash changes or spreads, or when it’s unclear whether an in-person examination is necessary. His emergency medicine background is particularly valuable online, helping patients understand risk levels, identify warning signs and choose safe next steps.

Some situations are not suitable for online care. If a patient has loss of consciousness, severe chest pain, uncontrolled bleeding, seizures, major trauma or symptoms suggesting a stroke or heart attack, he will advise seeking immediate local emergency services. This improves safety and ensures patients receive the right level of care.

Dr. Lokchiri’s professional training includes:

  • Advanced Trauma Life Support (ATLS)
  • Basic and Advanced Cardiac Life Support (BLS/ACLS)
  • Pediatric Advanced Life Support (PALS)
  • Prehospital Trauma Life Support (PHTLS)
  • eFAST and critical care transthoracic echocardiography
  • aviation medicine
He is an active member of several professional organisations, including the French Society of Emergency Medicine (SFMU), the French Association for Emergency Physicians (AMUF) and the Swiss Society of Emergency and Rescue Medicine (SGNOR). In consultations, he works with clarity and precision, helping patients understand their symptoms, possible risks and the safest treatment options.
CameraBook a video appointment
€58
Today08:00
Today09:00
Today10:15
Today12:30
Today13:15
More times
5.0(8)
Doctor

Anastasiia Shalko

Family medicine12 years of experience

Dr. Anastasiia Shalko is a general practitioner with a background in both paediatrics and general medicine. She graduated from Bogomolets National Medical University in Kyiv and completed her paediatric internship at the P.L. Shupyk National Medical Academy of Postgraduate Education. After working as a paediatrician in Kyiv, she relocated to Spain, where she has been practising general medicine since 2015, providing care for both adults and children.

Her work focuses on urgent, short-term medical concerns – situations where patients need quick guidance, symptom assessment and clear next steps. She helps people understand whether their symptoms require in-person evaluation, home management or a change in treatment. Common reasons for booking an online consultation include:

  • acute respiratory symptoms (cough, sore throat, runny nose, fever)
  • viral illnesses such as colds and seasonal infections
  • gastrointestinal complaints (nausea, diarrhoea, abdominal pain, gastroenteritis)
  • sudden changes in how a child or adult feels
  • questions about existing treatment and whether adjustments are needed
  • renewal of prescriptions when clinically appropriate
Dr. Shalko works specifically with urgent and short-term problems, providing practical recommendations and helping patients determine the safest next step. She explains symptoms clearly, guides patients through decision-making and offers straightforward medical advice for everyday acute issues.

She does not provide long-term management of chronic conditions, ongoing follow-up or comprehensive care plans for complex long-term illnesses. Her consultations are designed for acute symptoms, sudden concerns and situations where timely medical input is important.

With clinical experience in both paediatrics and general medicine, Dr. Shalko confidently supports adults and children. Her communication style is clear, simple and reassuring, helping patients feel informed and supported throughout the consultation.

CameraBook a video appointment
€50
Today08:00
Today08:30
Today09:00
Today09:30
Today10:00
More times
5.0(46)
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.

CameraBook a video appointment
€59
Today09:00
Today09:20
Today09:40
Today10:00
Today10:20
More times
5.0(11)
Doctor

Duarte Meneses

Family medicine4 years of experience

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.

CameraBook a video appointment
€65
Today09:00
Today09:25
Today09:50
Today10:15
Today10:40
More times
5.0(6)
Doctor

Svetlana Kovalenko

Family medicine14 years of experience

Dr Svetlana Kovalenko is a family medicine doctor with over 14 years of experience and a medical degree from Kharkiv National Medical University. She offers online consultations for adults, supporting patients with both acute and chronic conditions, preventive care, and personalised medical advice.

What patients commonly consult her for:

  • High blood pressure, type 2 diabetes, cholesterol management
  • Cold and flu symptoms: fever, cough, sore throat
  • Fatigue, sleep problems, headaches, general discomfort
  • Ongoing care for chronic conditions and medication review
  • Help interpreting test results and lab reports
  • Preventive check-ups and advice on healthy lifestyle habits

Dr Kovalenko combines evidence-based practice with a respectful, patient-centred approach. She takes time to explain, listens attentively, and helps each person make confident, informed decisions about their health.

CameraBook a video appointment
€55
Today09:00
Today09:25
Today09:50
Today10:15
Today10:40
More times
5.0(2)
Doctor

Ngozi Precious Okwuosa

General medicine5 years of experience

Dr. Ngozi Precious Okwuosa is a Primary Care Physician with over 5 years of clinical experience in Hungary, Sweden, and Nigeria. A graduate of the University of Szeged (cum laude), she offers online consultations for adults in the areas of internal medicine, women’s health, and postoperative care.

Key areas of consultation:

  • Preventive and family medicine
  • Women’s health, including gynaecology and obstetrics
  • Chronic disease management: hypertension, diabetes, and more
  • Mental health support, anxiety, and counselling
  • Postoperative care and lab test interpretation
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.
CameraBook a video appointment
€50
Today11:00
Today11:50
Today12:40
Today13:30
Today14:20
More times
0.0(1)
Doctor

Tomasz Grzelewski

Dermatology20 years of experience

Dr Tomasz Grzelewski is an MD, PhD specialist in allergy, paediatrics, general practice and sports medicine, with a clinical focus on dermatology, endocrinology, allergology and sports-related health. He has more than 20 years of clinical experience and completed his medical training at the Medical University of Łódź, where he defended his PhD thesis with distinction. His doctoral research was recognised by the Polish Society of Allergology for its innovative contribution to the field. Throughout his career, he has gained extensive expertise in diagnosing and managing a wide range of allergic and paediatric conditions, including modern allergen desensitisation techniques.

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
  • allergic rhinitis and chronic nasal symptoms
  • asthma and breathing difficulties
  • food and medication allergies
  • urticaria, atopic dermatitis and skin reactions
  • recurrent infections in children
  • sports-related health questions
  • general family medicine concerns
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.
CameraBook a video appointment
€80
Today11:00
Today11:25
Today11:50
Today12:15
Today12:40
More times

Get updates and exclusive offers

Be the first to know about new services, marketplace updates, and subscriber-only promos.

Follow us on social media
FacebookInstagram
Logo
Oladoctor
Find a doctor
Doctors by specialty
Services
Choose language
© 2025 Oladoctor. All rights reserved.
VisaMastercardStripe