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ZADITEN 0.25 mg/ml Eye Drops

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Talk to a doctor about this medicine

Discuss your symptoms and possible next steps in a quick online consultation.

Doctor
5.0(38)

Andrei Popov

General medicinePain medicine7 years of experience

Dr. Andrei Popov is a General Practitioner with specialized training in chronic pain. He provides online consultations for adult patients in Spain and other European countries.

Dr. Popov understands that seeking help with weight-related concerns or pain that has persisted for months can be difficult. Many patients come to him after trying different approaches without feeling truly heard. During the consultation, the doctor creates a comfortable and supportive, non-judgmental environment where the patient’s medical history can be discussed in detail, questions can be answered, and the next steps can be decided together.

Weight Management and Metabolic Health

Dr. Popov can help assess overweight, obesity, and related conditions such as hypertension, diabetes, or metabolic disorders. During the consultation, the patient’s medical history, test results, current medications, and previous treatments will be reviewed.

If you would like to learn about possible medication options or have already started treatment, the doctor can assess your situation, review the effectiveness and tolerability of the therapy, and clearly explain its benefits, potential risks, and alternatives.

Not every patient requires the same treatment. A consultation does not guarantee a prescription — it provides an objective medical assessment and a plan tailored to your individual situation.

Pain and General Medicine

You can also consult Dr. Popov regarding:

* chronic pain, migraines, neuralgia, and fibromyalgia;

* back, neck, lower back, or joint pain;

* hypertension, diabetes, and follow-up of chronic conditions;

* review of test results, medical reports, and current treatment;

* preventive medicine and a second medical opinion.

How the Consultation Works

The video consultation lasts up to 30 minutes. The doctor will listen carefully, review the information you provide, and explain the next steps in clear and understandable language.

If additional tests, an in-person consultation, or urgent medical care are required, the doctor will inform you directly.

Dr. Popov’s goal is to make sure the patient feels heard and leaves the consultation with a clear understanding of their condition and the next steps they can take.

Book a video appointment
€86
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 ZADITEN 0.25 mg/ml EYE DROPS IN SINGLE-DOSE CONTAINERS

Contents of the leaflet

  1. Introduction
  2. What is Zaditen and what is it used for
  3. What you need to know before using Zaditen
  4. How to use Zaditen
  5. Possible side effects
  6. Storage of Zaditen
  7. Package contents and additional information

Introduction

Leaflet: Information for the user

Zaditen0.25 mg/ml eye drops in solution in single-dose containers

Ketotifen

Read this leaflet carefully before starting to use this medicine, as it contains important information for you.

  • Keep this leaflet, as you may need to read it again.
  • If you have any questions, ask your doctor, pharmacist, or nurse.
  • This medicine has been prescribed to you only, and you should not give it to others, even if they have the same symptoms as you, as it may harm them.
  • If you experience side effects, consult your doctor, pharmacist, or nurse, even if they are not listed in this leaflet. See section 4.

Contents of the leaflet:

  1. What is Zaditen and what is it used for
  2. What you need to know before using Zaditen
  3. How to use Zaditen
  4. Possible side effects
  5. Storage of Zaditen
  6. Package contents and additional information

1. What is Zaditen and what is it used for

Zaditen contains the active substance ketotifen, which is an antiallergic substance. Zaditen is used to treat the ocular symptoms of seasonal allergic conjunctivitis.

You should consult a doctor if it worsens or does not improve.

Doctor consultation

Not sure if this medicine is right for you?

Discuss your symptoms and treatment with a doctor online.

2. What you need to know before using Zaditen

Do not use Zaditen

If you are allergic to ketotifen or any of the other components of this medicine (listed in section 6).

Warnings and precautions

Consult your doctor, pharmacist, or nurse before starting to use Zaditen.

Using Zaditen with other medicines

If you need to apply any other eye medicine in addition to Zaditen, wait at least 5 minutes between the application of each product.

Tell your doctor or pharmacist if you are using or have recently used or may need to use any other medicine. This is especially important in the case of medicines used to treat:

  • depression, anxiety, and sleep disorders
  • allergies (e.g., antihistamines)

Using Zaditen with food, drinks, and alcohol

Zaditen may increase the effects of alcohol.

Pregnancy and breastfeeding

If you are pregnant, think you may be pregnant, or plan to become pregnant, consult your doctor or pharmacist before using this medicine.

Zaditen can be used during breastfeeding.

Driving and using machines

Zaditen may cause blurred vision or drowsiness. Do not drive or use machines until these effects have disappeared.

3. How to use Zaditen

Follow exactly the administration instructions of this medicine indicated by your doctor or pharmacist. In case of doubt, consult your doctor or pharmacist again.

The recommended dose for adults, elderly, and children (3 years or older) is one drop in the affected eye(s) twice a day (morning and evening).

A single-dose container contains enough solution to treat both eyes in one application.

Instructions for use

  1. Wash your hands.
  2. Open the blister pack and remove the block of single-dose containers.
  3. Separate a single-dose container from the strip (Fig. 1).
  4. Store the remaining single-dose containers back in the blister pack and close the blister pack by folding the edge. Store the blister pack in the carton.
  5. Open the single-dose container by twisting the top. After opening, do not touch the tip of the dropper (Fig. 2).
  6. Tilt your head back (Fig. 3).
  7. Pull the lower eyelid down with your finger and hold the container with the other hand. Squeeze the container so that one drop falls into the eye (Fig. 4).
  8. Close your eyes and press the inner corner of the eye with the tip of your finger for 1-2 minutes. This prevents the drop from flowing down the tear duct into the throat, and most of the drop will remain in the eye (Fig. 5). If necessary, repeat steps 6 to 8 with the other eye.
  9. Discard the container after use.

Series of five schematic drawings showing the subcutaneous injection technique with skin fold and 45-degree angle

Fig. 1 Fig. 2 Fig. 3 Fig. 4 Fig. 5

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

If you use more Zaditen than you should

There is no danger if you accidentally take Zaditen orally, nor if more than one drop accidentally falls into your eye. In case of doubt, consult your doctor. Also, in case of overdose or accidental ingestion, you can contact the Toxicological Information Service: Tel.: 91 562 04 20.

If you forget to use Zaditen

If you forget to use Zaditen, apply the treatment as soon as you remember. Then, return to your regular treatment schedule. Do not take a double dose to make up for the forgotten doses.

Medicine questions

Started taking the medicine and have questions?

Discuss your symptoms and treatment with a doctor online.

4. Possible side effects

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

The following side effects have been reported.

Common(affect less than 1 in 10patients)

  • eye irritation or eye pain
  • eye inflammation

-

Uncommon(affect less than1 in 100patients)

  • blurred vision when applying the drops in the eye
  • eye dryness
  • eyelid changes
  • conjunctivitis
  • increased sensitivity of the eyes to light
  • visible bleeding in the white part of the eye
  • headache
  • drowsiness
  • rash (which can also cause itching)
  • eczema (itching, redness, rash with itching)
  • dry mouth
  • allergic reaction (including swelling of the face and eyelids) and increased severity of an existing allergic condition such as asthma and eczema

Reporting side effects

If you experience any side effects, consult your doctor or pharmacist, even if they are not listed in this leaflet. You can also report them directly through 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 Zaditen

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

Do not store above 25°C.

After opening a blister pack/bag, unused single-dose containers can be stored for 3 months if stored in the outer carton packaging or, if not, for 4 weeks.

The single-dose container itself is not sterile, but its contents are sterile until the container is opened.

Once opened, the contents of the single-dose container should be used immediately and not stored.

Do not use this medicine after the expiration date stated on the packaging after CAD. The expiration date is the last day of the month indicated.

Medicines should not be disposed of via wastewater or household waste. Dispose of the packaging and any unused medicine in the pharmacy's SIGRE collection point. If in doubt, ask your pharmacist how to dispose of the packaging and any unused medicine. This will help protect the environment.

6. Package contents and additional information

Zaditen composition

The active substance is ketotifen (as fumarate). Each ml contains 0.345 mg of ketotifen fumarate, which corresponds to 0.25 mg of ketotifen.

The other ingredients are glycerol (E422), sodium hydroxide (E524), and water for injectable preparations.

Appearance of the product and package contents

Zaditen is a clear, colorless to pale yellow solution. A single-dose container contains 0.4 ml. Zaditen is available in packs containing 5, 10, 20, 30, 50, and 60 single-dose containers.

Not all pack sizes may be marketed in your country.

Marketing authorization holder

Laboratoires THEA – 12, rue Louis Blériot – 63017 Clermont-Ferrand Cedex 2 – France

Manufacturer

EXCELVISION – 27 rue de la Lombardière – 07100 Annonay - France.

Or

Laboratoire UNITHER, 1 rue de l’Arquerie, 50200 COUTANCES, France

Local representative

Laboratorios THEA S.A. – C/ Enric Granados nº 86-88, 2ª planta, 08008 Barcelona

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

Austria Zaditen konservierungsmittelfrei 0,025% - Augentropfen in Einzeldosisbehältnissen

Czech Republic Zaditen SDU

Denmark Zaditen

Finland Zaditen 0,25 mg/ml silmätipat, liuos kerta-annospakkauksessa

France Zagrapa, 0,25 mg/ml, collyre en solution en récipient unidose

Germany Zaditen ophtha sine 0,25 mg/ml Augentropfen Lösung in Einzeldosisbehältnissen

Greece Zaditor οφθαλμικές σταγόνες

Iceland Zaditen

Luxembourg Zaditen Unidose, 0,25 mg/ml, collyre en solution en récipient unidose

Norway Zaditen

Portugal Zaditen 0,25 mg/ml colírio, solução em unidoses

Spain Zaditen 0,25 mg/ml colirio en solución en envases unidosis

Sweden Zaditen 0,25 mg/ml, ögondroppar, lösning i endosbehållare

Netherlands Zaditen Unidose 0,25 mg/ml, oogdruppels, oplossing

Date of the last revision of this leaflet:03/07/2020

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

Online doctors for ZADITEN 0.25 mg/ml EYE DROPS IN SINGLE-DOSE CONTAINERS

Discuss questions about ZADITEN 0.25 mg/ml EYE DROPS IN SINGLE-DOSE CONTAINERS, including use, safety considerations and prescription review, subject to medical assessment and local regulations.

Doctor
5.0(38)

Andrei Popov

General medicinePain medicine7 years of experience

Dr. Andrei Popov is a General Practitioner with specialized training in chronic pain. He provides online consultations for adult patients in Spain and other European countries.

Dr. Popov understands that seeking help with weight-related concerns or pain that has persisted for months can be difficult. Many patients come to him after trying different approaches without feeling truly heard. During the consultation, the doctor creates a comfortable and supportive, non-judgmental environment where the patient’s medical history can be discussed in detail, questions can be answered, and the next steps can be decided together.

Weight Management and Metabolic Health

Dr. Popov can help assess overweight, obesity, and related conditions such as hypertension, diabetes, or metabolic disorders. During the consultation, the patient’s medical history, test results, current medications, and previous treatments will be reviewed.

If you would like to learn about possible medication options or have already started treatment, the doctor can assess your situation, review the effectiveness and tolerability of the therapy, and clearly explain its benefits, potential risks, and alternatives.

Not every patient requires the same treatment. A consultation does not guarantee a prescription — it provides an objective medical assessment and a plan tailored to your individual situation.

Pain and General Medicine

You can also consult Dr. Popov regarding:

* chronic pain, migraines, neuralgia, and fibromyalgia;

* back, neck, lower back, or joint pain;

* hypertension, diabetes, and follow-up of chronic conditions;

* review of test results, medical reports, and current treatment;

* preventive medicine and a second medical opinion.

How the Consultation Works

The video consultation lasts up to 30 minutes. The doctor will listen carefully, review the information you provide, and explain the next steps in clear and understandable language.

If additional tests, an in-person consultation, or urgent medical care are required, the doctor will inform you directly.

Dr. Popov’s goal is to make sure the patient feels heard and leaves the consultation with a clear understanding of their condition and the next steps they can take.

Book a video appointment
€86
Doctor
5.0(12)

Yevgen Yakovenko

General medicine12 years of experience

Dr. Yevgen Yakovenko is a licensed surgeon and general practitioner in Spain and Germany. He specialises in general, paediatric, and oncological surgery, internal medicine, and pain management. He offers online consultations for adults and children, combining surgical precision with therapeutic support. Dr Yakovenko works with patients across different countries and provides care in Ukrainian, Russian, English, and Spanish.

Areas of medical expertise:

  • Acute and chronic pain: headaches, muscle and joint pain, back pain, abdominal pain, postoperative pain. Identifying the cause, selecting treatment, and creating a care plan.
  • Internal medicine: heart, lungs, gastrointestinal tract, urinary system. Management of chronic conditions, symptom control, second opinions.
  • Pre- and postoperative care: risk assessment, decision-making support, follow-up after surgery, rehabilitation strategies.
  • General and paediatric surgery: hernias, appendicitis, congenital conditions, both planned and urgent surgeries.
  • Injuries and trauma: bruises, fractures, sprains, soft tissue damage, wound care, dressing, referral when in-person care is required.
  • Oncological surgery: diagnosis review, treatment planning, and long-term follow-up.
  • Obesity treatment and weight management: a medical approach to weight loss, including assessment of underlying causes, evaluation of comorbidities, development of a personalised plan (nutrition, physical activity, pharmacotherapy if needed), and ongoing progress monitoring.
  • Imaging interpretation: analysis of ultrasound, CT, MRI, and X-ray results, surgical planning based on imaging data.
  • Second opinions and medical navigation: clarifying diagnoses, reviewing current treatment plans, helping patients choose the best course of action.

Experience and qualifications:

  • 12+ years of clinical experience in university hospitals in Germany and Spain.
  • International education: Ukraine – Germany – Spain.
  • Member of the German Society of Surgeons (BDC).
  • Certified in radiological diagnostics and robotic surgery.
  • Active participant in international medical conferences and research.

Dr Yakovenko explains complex topics in a clear, accessible way. He works collaboratively with patients to analyse health issues and make evidence-based decisions. His approach is grounded in clinical excellence, scientific accuracy, and respect for each individual.

If you are unsure about a diagnosis, preparing for surgery, or want to discuss your test results – Dr Yakovenko will help you evaluate your options and move forward with confidence.

Book a video appointment
€72
Doctor
5.0(3)

Lina Travkina

General medicine13 years of experience

Dr. Lina Travkina is a licensed family and preventive medicine doctor based in Italy. She provides online consultations for adults and children, supporting patients across all stages of care – from acute symptom management to long-term health monitoring and prevention.Areas of medical care include:

  • Respiratory conditions: colds, flu, acute and chronic bronchitis, mild to moderate pneumonia, bronchial asthma.

  • ENT and eye conditions: sinusitis, tonsillitis, pharyngitis, otitis, infectious and allergic conjunctivitis.

  • Digestive issues: gastritis, acid reflux (GERD), IBS, dyspepsia, bloating, constipation, diarrhoea, functional bowel symptoms, intestinal infections.

  • Urological and infectious diseases: acute and recurrent cystitis, bladder and kidney infections, prevention of recurrent UTIs, asymptomatic bacteriuria.

  • Chronic conditions: hypertension, diabetes, hypercholesterolemia, metabolic syndrome, thyroid disorders, excess weight.

  • Neurological and general symptoms: headache, migraine, dizziness, fatigue, sleep disturbances, reduced concentration, anxiety, asthenia.

  • Chronic pain support: back, neck, joint, and muscle pain, tension syndromes, pain associated with osteochondrosis and chronic conditions.

Additional care areas:

  • Preventive consultations and check-up planning.

  • Medical advice and follow-up consultations.

  • Test interpretation and diagnostic guidance.

  • Structured support for undiagnosed complaints.

  • Second opinion on diagnoses and treatment plans.

  • Nutritional and lifestyle support for vitamin deficiencies, anaemia, metabolic issues.

  • Post-operative recovery support and pain management.

  • Preconception counselling and postpartum support.

  • Immunity support and strategies to reduce frequency of infections.

Dr. Travkina combines evidence-based medicine with an attentive, personalised approach. Her consultations focus not only on treatment, but also on prevention, recovery, and long-term wellbeing.If during the consultation it becomes clear that your case requires in-person assessment or specialised care outside of her scope, the session will be terminated and the payment fully refunded.

Book a video appointment
€75
Doctor
5.0(21)

Nuno Tavares Lopes

General medicine18 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.

Book a video appointment
€70
Doctor
0.0(0)

Hocine Lokchiri

General medicine21 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.
Book a video appointment
€64

Get ZADITEN 0.25 mg/ml EYE DROPS IN SINGLE-DOSE CONTAINERS Prescription Online

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Electronic prescription sent to your email — valid across Spain.

Frequently Asked Questions

ZADITEN 0.25 mg/ml EYE DROPS IN SINGLE-DOSE CONTAINERS requires a prescription in Spain. You can check with a doctor online whether this medicine may be appropriate for your situation.

The active ingredient in ZADITEN 0.25 mg/ml EYE DROPS IN SINGLE-DOSE CONTAINERS is ketotifen. This information helps identify medicines with the same composition but different brand names.

The average pharmacy price for ZADITEN 0.25 mg/ml EYE DROPS IN SINGLE-DOSE CONTAINERS is around 5.06 EUR. Prices may vary depending on the manufacturer and dosage form.

ZADITEN 0.25 mg/ml EYE DROPS IN SINGLE-DOSE CONTAINERS is manufactured by Laboratoires Thea. Pharmacy brands and packaging may differ depending on the distributor.

Doctors such as Family doctors, Psychiatrists, Dermatologists, Cardiologists, Endocrinologists, Gastroenterologists, Pulmonologists, Nephrologists, Rheumatologists, Hematologists, Infectious disease physicians, Allergists, Geriatricians, Paediatricians, Oncologists may assess whether ZADITEN 0.25 mg/ml EYE DROPS IN SINGLE-DOSE CONTAINERS is appropriate, depending on your situation and local regulations. You can book an online consultation to discuss your symptoms and possible next steps.

Spain has a well-developed healthcare infrastructure across major cities such as Madrid, Barcelona, Valencia, and Seville. Pharmacies are widely available and operate under strict regulations, ensuring access to prescribed medications.

You can buy ZADITEN 0.25 mg/ml EYE DROPS IN SINGLE-DOSE CONTAINERS in Madrid, Barcelona, Seville, or Valencia at any local pharmacy with a valid prescription.

To obtain a prescription, you can use Oladoctor:

Other medicines with the same active substance (ketotifen) include BENTIFEN 0.25mg/ml EYE DROPS SOLUTION, KETISAL 0.25 mg/ml EYE DROPS SOLUTION, KETOBRILL 0.25 mg/ml EYE DROPS IN SINGLE-DOSE CONTAINERS. 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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