Bg pattern

KETOTIFEN DERMOGEN 0.25 mg/ml EYE DROPS IN SOLUTION IN SINGLE-DOSE CONTAINERS

Prescription review online

Prescription review online

A doctor will review your case and decide whether a prescription is medically appropriate.

Talk to a doctor about this medicine

Talk to a doctor about this medicine

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

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 KETOTIFEN DERMOGEN 0.25 mg/ml EYE DROPS IN SOLUTION IN SINGLE-DOSE CONTAINERS

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.

Show original

Introduction

Leaflet: information for the user

Ketotifeno Dermogen 0.25 mg/ml eye drops in single-dose container solution

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

  • Keep this leaflet, as you may need to read it again.
  • If you have any doubts, consult your doctor, pharmacist, or nurse.
  • This medication has been prescribed to you only and should not be given 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 side effects not listed in this leaflet. See section 4.

Contents of the leaflet

  1. What is Ketotifeno Dermogen and what is it used for
  2. What you need to know before starting to use Ketotifeno Dermogen
  3. How to use Ketotifeno Dermogen
  4. Possible side effects
    1. Storage of Ketotifeno Dermogen
  1. Container contents and additional information

1. What is Ketotifeno Dermogen and what is it used for

Ketotifeno Dermogen contains the active ingredient ketotifeno, which is an antiallergic substance. Ketotifeno Dermogen 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 starting to use Ketotifeno Dermogen

Do not use Ketotifeno Dermogen:

  • if you are allergic to ketotifeno or any of the other components of this medication (listed in section 6).

Warnings and precautions

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

Using Ketotifeno Dermogen with other medications

If you need to apply any other eye medication besides Ketotifeno Dermogen, wait at least 5 minutes between the application of each product.

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

  • depression
  • allergies (e.g., antihistamines)

Using Ketotifeno Dermogen with food, drinks, and alcohol

Ketotifeno Dermogen may increase the effects of alcohol.

Pregnancy and breastfeeding

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

Ketotifeno Dermogen can be used during breastfeeding.

Driving and using machines

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

3. How to use Ketotifeno Dermogen

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

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

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 your 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 your 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 6-8 with the other eye.
  9. Discard the container after use.

Vials with liquid, hand applying drops to eye, profile of head and hand holding lower eyelid with eye drops

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

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

If you use more Ketotifeno Dermogen than you should

There is no danger if you accidentally take Ketotifeno Dermogen 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 consult the Toxicology Information Service Tel.: 91 562 04 20.

If you forget to use Ketotifeno Dermogen

If you forget to use Ketotifeno Dermogen, 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 missed 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 medications, this medication can cause side effects, although not everyone will experience them.

The following side effects have been reported.

Frequent (affecting less than 1 in 10 patients)

  • eye irritation or eye pain
  • eye inflammation

Uncommon (affecting less than 1 in 100 patients)

  • blurred vision when applying the drops to the eye
  • eye dryness
  • eyelid alteration
  • 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 type of side effect, consult your doctor or pharmacist, even if it is a possible side effect not listed in this leaflet. You can also report them directly through the Spanish Medication Monitoring System for Human Use: www.notificaRAM.es. By reporting side effects, you can contribute to providing more information on the safety of this medication.

5. Storage of Ketotifeno Dermogen

No special storage conditions are required.

Keep this medication out of sight and reach of children.

Keep the single-dose container in the aluminum bag.

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

Do not use this medication after the expiration date shown on the box after CAD. The expiration date is the last day of the month indicated.

Do not use this medication if you notice visible signs of deterioration.

Medications should not be thrown away in drains or trash. Deposit the containers and medications you no longer need in the SIGRE Point of the pharmacy. If in doubt, ask your pharmacist how to dispose of the containers and medications you no longer need. This will help protect the environment.

6. Container contents and additional information

Ketotifeno Dermogen composition

The active ingredient is ketotifeno (in the form of fumarate). Each ml contains 0.345 mg of ketotifeno fumarate, which corresponds to 0.25 mg of ketotifeno.

The other components are glycerol (E422), sodium hydroxide (E524), phosphoric acid, and purified water.

Product appearance and container contents

Ketotifeno Dermogen is a colorless solution. Each single-dose container contains 0.4 ml.

Ketotifeno Dermogen is available in containers containing 5, 10, and 20 single-dose containers.

Only some package sizes may be marketed.

Marketing authorization holder and manufacturer

Marketing authorization holder

NUTRA ESSENTIAL OTC, S.L.

La Granja, 1

28108 Alcobendas Madrid

Manufacturer

Unolab Manufacturing S.L.

Avenida de las Flores nº 6

28970 Humanes de Madrid (Madrid), Spain

or

Farmalider S.A.

C/Aragoneses2

28108 Alcobendas (Madrid) Spain

Date of the last revision of this leaflet:July 2017

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

Online doctors for KETOTIFEN DERMOGEN 0.25 mg/ml EYE DROPS IN SOLUTION IN SINGLE-DOSE CONTAINERS

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

5.0 (69)
Doctor

Tarek Agami

General medicine 11 years exp.

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.

Camera Book a video appointment
€69
5.0 (63)
Doctor

Nuno Tavares Lopes

Family medicine 18 years exp.

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.

Camera Book a video appointment
€59
5.0 (3)
Doctor

Tomasz Grzelewski

Dermatology 21 years exp.

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.
Camera Book a video appointment
€80

Frequently Asked Questions

Is a prescription required for KETOTIFEN DERMOGEN 0.25 mg/ml EYE DROPS IN SOLUTION IN SINGLE-DOSE CONTAINERS?
KETOTIFEN DERMOGEN 0.25 mg/ml EYE DROPS IN SOLUTION 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.
What is the active substance in KETOTIFEN DERMOGEN 0.25 mg/ml EYE DROPS IN SOLUTION IN SINGLE-DOSE CONTAINERS?
The active ingredient in KETOTIFEN DERMOGEN 0.25 mg/ml EYE DROPS IN SOLUTION IN SINGLE-DOSE CONTAINERS is ketotifen. This information helps identify medicines with the same composition but different brand names.
Who manufactures KETOTIFEN DERMOGEN 0.25 mg/ml EYE DROPS IN SOLUTION IN SINGLE-DOSE CONTAINERS?
KETOTIFEN DERMOGEN 0.25 mg/ml EYE DROPS IN SOLUTION IN SINGLE-DOSE CONTAINERS is manufactured by Nutra Essential Otc S.L.. Pharmacy brands and packaging may differ depending on the distributor.
Which doctors can assess the use of KETOTIFEN DERMOGEN 0.25 mg/ml EYE DROPS IN SOLUTION IN SINGLE-DOSE CONTAINERS 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 KETOTIFEN DERMOGEN 0.25 mg/ml EYE DROPS IN SOLUTION 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.
What are the alternatives to KETOTIFEN DERMOGEN 0.25 mg/ml EYE DROPS IN SOLUTION IN SINGLE-DOSE CONTAINERS?
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.
bg-pattern-dark

Stay informed about Oladoctor

News about new services, product updates and useful information for patients.

Follow us on social media