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NETENAX 3 mg/ml EYE DROPS SOLUTION

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About the medicine

How to use NETENAX 3 mg/ml EYE DROPS SOLUTION

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

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Introduction

Package Leaflet: Information for the Patient

Netenax 3mg/ml Eye Drops Solution

netilmicin

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

  • Keep this package leaflet, as you may need to read it again.
  • If you have any questions, consult your doctor or pharmacist.
  • This medication 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 or pharmacist, even if they are side effects not listed in this package leaflet. See section 4.

Contents of the Package Leaflet

  1. What is Netenax and what is it used for
  2. What you need to know before using Netenax
  3. How to use Netenax
  4. Possible side effects
  5. Storage of Netenax
  6. Package Contents and Additional Information

1. What is Netenax and what is it used for

This medication contains the active ingredient netilmicin, an antibiotic belonging to a group called aminoglycosides, which kills bacteria.

Antibiotics are used to treat bacterial infections and are not effective against viral infections.

It is essential to follow the instructions regarding dosage, administration interval, and treatment duration as indicated by your doctor.

Do not store or reuse this medication. If you have any leftover antibiotic after completing treatment, return it to the pharmacy for proper disposal. Do not throw away medications down the drain or in the trash.

It is indicated in adults for the topical treatment of external eye infections and surrounding areas caused by bacteria sensitive to netilmicin.

You should consult a doctor if your condition 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 Netenax

Do not use Netenax:

  • if you are allergic to netilmicin, any other aminoglycoside antibiotic (gentamicin, tobramycin, kanamycin, etc.) or to any of the other components of this medication (listed in section 6).

Warnings and Precautions

Consult your doctor or pharmacist before starting to use Netenax.

If you use antibiotics for an extended period, you may become more susceptible to eye infections.

Aminoglycoside antibiotics can cause severe ear and kidney problems. If you are using another antibiotic treatment, even orally, along with this medication, consult your doctor.

This medication is not injectable. Therefore, it should not be injected into the eye or introduced into the front part (anterior chamber) of the eye.

In all the above cases, or if you experience allergic reactions with this medication, discontinue use and consult your doctor.

Children and Adolescents

The safety and efficacy of this medication have not been established in children or adolescents.

Other Medications and Netenax

Inform your doctor or pharmacist if you are taking, have recently taken, or may need to take any other medication.

This medication can be used with other eye medications, but it is essential to follow the instructions in section 3.

Inform your doctor or pharmacist if you are taking:

  • any other antibiotic, particularly polymyxin B, colistin, viomycin, streptomycin, vancomycin, or cefaloridine. The simultaneous use of this medication with other aminoglycoside antibiotics may increase the risk of kidney problems, ear problems, or affect the proper functioning of the other antibiotics;
  • cisplatin (used in anticancer treatments);
  • diuretics (medicines that reduce fluid retention) such as etacrynic acid and furosemide.

Pregnancy and Breastfeeding

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

Pregnancy

You should use this medication only if your doctor considers it appropriate.

Breastfeeding

The use of this medication is not recommended during breastfeeding, as this medication is excreted in breast milk in small amounts.

Driving and Using Machines

You may experience temporary blurred vision after using this medication. Do not drive or use machinery until your vision is clear.

Netenax 3mg/ml Eye Drops Solution in Multidose Container Containsbenzalkonium chloride

This medication contains 0.05 mg of benzalkonium chloride per ml.

Benzalkonium chloride can be absorbed by soft contact lenses, altering their color. Remove contact lenses before using this medication and wait 15 minutes before putting them back on.

Benzalkonium chloride can cause eye irritation, especially if you have dry eye or other corneal diseases (transparent layer in the front of the eye). Consult your doctor if you feel any unusual sensation, itching, or pain in the eye after using this medication.

3. How to Use Netenax

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 is 1 or 2 drops in the affected eye 3 times a day or as directed by your doctor.

If you wear contact lenses

The use of contact lenses is not recommended during the treatment of a superficial eye infection.

If you wear contact lenses, you should remove them before using Netenax eye drops. After using this medication, wait 15 minutes before putting your contact lenses back on.

Instructions for Use

  1. Wash your hands thoroughly.
  2. Tighten the cap by turning it downward to puncture the tip of the bottle.

Two vials with rubber stoppers and curved arrows showing rotation to prepare the mixture

  1. Remove the cap, turn the bottle upside down, and press it gently to release one drop into the affected eye(s). Do not touch the eye, eyelids, or any other surface with the tip of the bottle to avoid contamination.

Hand holding a syringe injecting medication into the skin with a needle at an inclined angle

  1. Replace the cap on the dropper and tighten it well.

Inhaler device with mouthpiece and cartridge showing aerosol flow towards the open mouth

Keep the affected eye closed and press the tip of your finger against the tear duct of the closed eye, and hold for 1 minute. This is important because it reduces the amount of medication that passes into the rest of your body.

Hand holding a syringe with a needle inserted into the skin showing angle and depth of injection

If you use more Netenax than you should

There have been no reported cases of overdose with the use of this medication.

If you accidentally instill more drops than you should, it is unlikely to cause any problems. Apply the next dose as scheduled.

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

If you forget to useNetenax

Do not apply a double dose to make up for forgotten doses.

If you interrupt treatment with Netenax

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

If you useNetenax with other eye medications

If you are using any other eye medication, you should wait 5 minutes between using one medication and the other.

Eye ointments should be used last.

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 experiences them. Most people treated with this eye drop do not suffer any side effects.

The following side effects have occurred with netilmicin. The frequency is unknown (cannot be estimated from the available data):

  • eye irritation
  • redness in the eyes
  • rash on the eyelid
  • swelling of the eyelid
  • itching in the eyes
  • allergic reaction
  • hives

Reporting Side Effects

If you experience any side effects, consult your doctor or pharmacist, even if they are possible side effects not listed in this package leaflet. You can also report them directly through the Spanish Medication Surveillance System for Human Use: https://www.notificaram.es. By reporting side effects, you can contribute to providing more information on the safety of this medication.

5. Storage of Netenax

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

Do not use this medication after the expiration date stated on the label and carton after CAD. The expiration date is the last day of the month indicated on the unopened and properly stored product.

You can use this medication for up to 28 days after first opening.

Do not store above 25°C.

Keep the bottle in the outer packaging to protect it from light.

Medications should not be disposed of through wastewater or household waste. Deposit the packaging and any unused medications at the SIGRE collection point in your pharmacy. If in doubt, ask your pharmacist how to dispose of the packaging and medications you no longer need. This will help protect the environment.

6. Package Contents and Additional Information

Composition of Netenax

  • The active ingredient is netilmicin. Each ml of solution contains 3 mg of netilmicin (as netilmicin sulfate).
  • The other ingredients are sodium chloride, benzalkonium chloride, sodium hydroxide (for pH adjustment), and purified water.

Appearance of the Product and Package Contents

Netenax is a clear, colorless, or pale yellow solution contained in a 5 ml bottle, which comes in a cardboard box.

Marketing Authorization Holder and Manufacturer

SIFI S.p.A.

Via Ercole Patti 36

95025 Aci Sant'Antonio (CT)

Italy

Local Representative:

SIFI IBÉRICA S.L.

C/ Poeta Joan Maragall, 47

Planta 4, Puerta 402

28020 Madrid - Spain

Date of the Last Revision of this Package Leaflet:November 2019

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.es

Online doctors for NETENAX 3 mg/ml EYE DROPS SOLUTION

Discuss questions about NETENAX 3 mg/ml EYE DROPS SOLUTION, including use, safety considerations and prescription review, subject to medical assessment and local regulations.

5.0 (5)
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
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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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Andrei Popov

General medicine 7 years exp.

Dr. Andrei Popov is a family physician with specialized training in the management of chronic pain. He provides video consultations for adults in Spain and across Europe: whether you have been living with pain for months that no one has been able to properly explain, or you need to resolve a health issue without waiting weeks for an appointment.

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Pain: how he can help

  • Chronic pain (more than 3 months
  • Migraine and recurrent or high-intensity headaches
  •  Neck, lower back, back and joint pain
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  •  Pain of neurological origin: neuralgia, neuropathic pain, fibromyalgia

General medicine

  • Frequent respiratory infections (cold, flu, persistent cough)
  • Hypertension, diabetes and metabolic disorders
  • Review of laboratory tests and MRI/CT reports (explained in clear language)
  • Preventive medicine and health monitoring
  • Second opinions and treatment adjustments (when clinically appropriate)

What the consultation is like
 Each session lasts up to 30 minutes. We review symptoms, medical history, medications and any tests you provide, and you finish the consultation with a clear treatment plan, defined next steps, and criteria to understand when follow-up may be needed. If warning signs are detected, he will clearly advise whether you need in-person care or urgent medical attention.

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Doctor

Joao Silva

General medicine 6 years exp.

Dr. João Silva is a physician with training and experience in the field of General and Family Medicine, dedicated to providing healthcare focused on the well-being and quality of life of his patients. Throughout his professional career, he has developed broad clinical competencies, striving to maintain a medical practice based on scientific evidence and continuous knowledge updates.

Between 2013 and 2019, he completed the Integrated Master's Degree in Medicine at the Abel Salazar Institute of Biomedical Sciences in Porto, where he acquired a solid academic and clinical education.

Subsequently, between January 2021 and December 2021, he completed the General Internship at the Entre Douro e Vouga Hospital Center in Santa Maria da Feira, where he had the opportunity to work in different hospital settings and deepen his competencies in several areas of medicine.

From January 2022 until March 2026, he works as a Resident Physician in General and Family Medicine at USF Salvador Machado in Oliveira de Azeméis, developing clinical activities in primary healthcare, follow-up of chronic patients, and health promotion in the community.

Complementing his medical training, Dr. João Silva also completed a Postgraduate Degree in Continuing and Palliative Care at CESPU, strengthening his preparation in the comprehensive approach to patient care, especially in situations requiring prolonged care and multidisciplinary support.

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Doctor

Yevgen Yakovenko

General surgery 12 years exp.

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.
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  • 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.
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  • 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.

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5.0 (41)
Doctor

Anna Biriukova

General medicine 6 years exp.

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

Cardiology – Diagnosis and treatment of:

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Endocrinology – Diabetes, thyroid, metabolism:
  • Diagnosis and management of type 1 and type 2 diabetes, and prediabetes.
  • Individual treatment plans including oral medications and insulin therapy.
  • GLP-1 therapy– modern pharmacological treatment for weight management and diabetes control, including drug selection, monitoring, and safety follow-up.
  • Thyroid disorders – hypothyroidism, hyperthyroidism, autoimmune thyroid diseases (Hashimoto’s, Graves’ disease).
  • Metabolic syndrome – obesity, lipid disorders, insulin resistance.
Gastroenterology – Digestive health:
  • Abdominal pain, nausea, heartburn, gastroesophageal reflux (GERD).
  • Stomach and intestinal conditions: gastritis, irritable bowel syndrome (IBS), indigestion.
  • Management of chronic digestive disorders and interpretation of tests (endoscopy, ultrasound, labs).
General internal medicine and preventive care:
  • Respiratory infections – cough, colds, bronchitis.
  • Lab test analysis, therapy adjustments, medication management.
  • Adult vaccinations – planning, contraindications assessment.
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Dr Biriukova combines internal medicine with specialist insight, offering clear explanations, personalised treatment plans, and comprehensive care tailored to each patient.
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€60

Frequently Asked Questions

Is a prescription required for NETENAX 3 mg/ml EYE DROPS SOLUTION?
NETENAX 3 mg/ml EYE DROPS SOLUTION 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 NETENAX 3 mg/ml EYE DROPS SOLUTION?
The active ingredient in NETENAX 3 mg/ml EYE DROPS SOLUTION is netilmicin. This information helps identify medicines with the same composition but different brand names.
How much does NETENAX 3 mg/ml EYE DROPS SOLUTION cost in pharmacies?
The average pharmacy price for NETENAX 3 mg/ml EYE DROPS SOLUTION is around 6.87 EUR. Prices may vary depending on the manufacturer and dosage form.
Who manufactures NETENAX 3 mg/ml EYE DROPS SOLUTION?
NETENAX 3 mg/ml EYE DROPS SOLUTION is manufactured by Sifi S.P.A.. Pharmacy brands and packaging may differ depending on the distributor.
Which doctors can assess the use of NETENAX 3 mg/ml EYE DROPS SOLUTION 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 NETENAX 3 mg/ml EYE DROPS SOLUTION 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 NETENAX 3 mg/ml EYE DROPS SOLUTION?
Other medicines with the same active substance (netilmicin) include NETENAX 3 mg/ml EYE DROPS SOLUTION IN SINGLE-DOSE CONTAINERS, AZYDROP 15mg/g, SINGLE-DOSE SOLUTION EYE DROPS, COLIRCUSI GENTAMICINA 3mg/ml EYE DROPS SOLUTION. 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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