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EFLUELDA TETRA Injectable Suspension in Pre-filled Syringe

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Doctor

Chikeluo Okeke

General medicine 4 years exp.

Dr Chikeluo Okeke is an internal medicine doctor with extensive international clinical experience. Originally from Nigeria, he has worked across multiple European healthcare systems and currently practises in Sweden. This professional path has given him a strong understanding of different medical approaches and the ability to work effectively with patients from diverse cultural and linguistic backgrounds.

Dr Okeke focuses on general internal medicine and adult primary care, combining clinical accuracy with careful attention to lifestyle, personal context, and everyday health concerns. His consultations are particularly well suited for people who seek medical advice online, live abroad, or need clear guidance without unnecessary complexity.

He provides online consultations covering symptom assessment, prevention, and long-term management of chronic conditions, helping patients understand what is happening and decide on appropriate next steps.

Common reasons for consultation:

  • General internal medicine concerns and initial health assessment.
  • Acute symptoms such as fever, cough, infections, pain, or weakness.
  • Chronic conditions and treatment adjustment.
  • Blood pressure issues, fatigue, metabolic concerns.
  • Preventive consultations and routine check-ups.
  • Interpretation of laboratory results and medical reports.
  • Medical advice for patients receiving care online.

Dr Okeke is known for his clear communication, calm approach, and cultural awareness. He listens carefully, explains medical decisions in a structured way, and supports patients in making informed choices about their health.

Online consultations with Dr Chikeluo Okeke offer reliable internal medicine care without geographic limitations, focused on medical relevance, clarity, and patient comfort.

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 EFLUELDA TETRA Injectable Suspension in Pre-filled Syringe

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.

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Introduction

Package Leaflet: Information for the User

Efluelda Tetra, injectable suspension in a pre-filled syringe

Tetra-valent influenza vaccine (inactivated, fragmented virus), 60 micrograms HA/strain

This medicinal product is subject to additional monitoring, which will allow for the quick identification of new safety information. You can help by reporting any side effects you may experience. The last section of section 4 will provide information on how to report side effects.

Read all of this leaflet carefully before you are vaccinated 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, pharmacist, or nurse.
  • This vaccine has been prescribed to you, do not pass it on to others, even if their symptoms are the same as yours, as it may harm them.
  • If you experience any side effects, talk to your doctor, pharmacist, or nurse, even if they are not listed in this leaflet. See section 4.

Contents of the pack

  1. What Efluelda Tetra is and what it is used for
  2. What you need to know before you use Efluelda Tetra
  3. How to use Efluelda Tetra
  4. Possible side effects
  5. Storage of Efluelda Tetra
  6. Contents of the pack and further information

1. What Efluelda Tetra is and what it is used for

Efluelda Tetra is a vaccine. This vaccine helps protect people aged 60 and over against influenza virus. The use of Efluelda Tetra should be based on official recommendations on influenza vaccination.

When you receive Efluelda Tetra, your immune system (the body's natural defense system) will produce its own protection (antibodies) against the disease. None of the vaccine components can cause influenza.

Influenza is a contagious respiratory disease caused by the influenza virus, which can result in mild to severe illness, and serious complications such as pneumonia, which can lead to hospitalization or even death. Influenza is a disease that can spread rapidly and is caused by different strains that can change every year. Due to this potential change in circulating strains annually, as well as the duration of protection provided by the vaccine, annual vaccination is recommended. The highest risk of contracting influenza is during the cold months between October and March. If you were not vaccinated in the fall, it is still advisable to get vaccinated until spring, as you are at risk of contracting influenza until then. Your doctor will be able to recommend the best date for vaccination.

Efluelda Tetra is designed to protect you against the four strains of the virus contained in the vaccine, approximately 2 to 3 weeks after injection. Additionally, if you are exposed to influenza immediately before or after vaccination, you may still develop the disease, since the incubation period of influenza is a few days.

The vaccine will not protect you against the common cold, even if some of the symptoms are similar to those of influenza.

Doctor consultation

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2. What you need to know before you start using Efluelda Tetra

To ensure that Efluelda Tetra is suitable for you, it is important that you inform your doctor or pharmacist if any of the following points apply to you. If there is anything you do not understand, ask your doctor or pharmacist to explain it to you.

Do not use Efluelda Tetra:

  • if you are allergic to:
  • the active substances, or
  • to any of the other components of this vaccine (listed in section 6), or
  • to any of the components that may be present in minimal amounts, such as eggs (ovoalbumin, chicken proteins) and formaldehyde.

Warnings and precautions

Talk to your doctor, pharmacist, or nurse before starting to use Efluelda Tetra.

Talk to your doctor before getting vaccinated if you:

  • have a weakened immune system (immunodeficiency or are taking medications that affect the immune system),
  • have bleeding problems or bruise easily,
  • have experienced Guillain-Barré Syndrome (GBS) (severe muscle weakness) after receiving an influenza vaccine,
  • have a high or moderate fever or an acute illness, vaccination should be postponed until you have recovered.

Your doctor will decide if you should receive the vaccine.

Fainting can occur after, or even before, any injection with a needle. Therefore, inform your doctor or nurse if you have fainted with a previous injection.

Like all vaccines, Efluelda Tetra may not fully protect all people who are vaccinated.

If you have a blood test a few days after influenza vaccination, please inform your doctor. This is because false-positive results have been observed in serological tests in some recently vaccinated patients.

Children

This vaccine must not be used in children, it is only for adults aged 60 and over.

Other medicines and Efluelda Tetra

Tell your doctor or pharmacist if you are using, have recently used, or might use any other medicines or vaccines.

  • If Efluelda Tetra is to be administered at the same time as other vaccines, the vaccines should always be administered in different limbs.
  • Note that adverse reactions can be intensified by any co-administration.
  • The immune response may be reduced in the case of immunosuppressive treatments, such as corticosteroids, cytotoxic medications, or radiation therapy.

Pregnancy and breastfeeding

Efluelda Tetra is only indicated for use in adults aged 60 and over.

If you are pregnant or breastfeeding, think you may be pregnant, or are planning to have a baby, ask your doctor or pharmacist for advice before using this vaccine. Your doctor/pharmacist will help you decide if you should receive Efluelda Tetra.

Driving and using machines

Efluelda Tetra has a negligible influence on the ability to drive and use machines. However, if you feel unwell or dizzy, it is not recommended to drive.

Efluelda Tetra contains sodium

This medicinal product contains less than 1 mmol of sodium (23 mg) per dose; it is essentially "sodium-free".

3. How to use Efluelda Tetra

Adults aged 60 and over receive a dose of 0.7 ml.

How Efluelda Tetra is administered

Your doctor, pharmacist, or nurse will administer the recommended dose of the vaccine as an injection into the muscle or under the skin.

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

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 vaccine can cause side effects, although not everybody gets them.

Allergic reactions

See a doctor IMMEDIATELYif you experience:

  • Severe allergic reactions:
  • which can lead to a medical emergency with low blood pressure, shortness of breath, wheezing, or difficulty breathing, rapid heartbeat, and weak pulse, cold, clammy skin (cold sweat), dizziness, which can lead to collapse (anaphylaxis [including angioedema, e.g., swelling more apparent on the face, lips, tongue, throat, or any other part of the body, and which can cause difficulty swallowing or breathing]).

See a doctor if you experience:

  • Allergic reactions such as skin reactions that can spread throughout the body, including itching, hives, rash.

These side effects are rare (may affect up to 1 in 1,000 people).

Other reported adverse effects

The following adverse effects were reported in adults aged 60 and over.

Very common (may affect more than 1 in 10 people):

  • Injection site reactions: pain, redness (erythema)
  • General feeling of being unwell (malaise), headache, muscle pain (myalgia)

Common (may affect up to 1 in 10 people):

  • Injection site reactions: swelling, bruising, hardness (induration)
  • Fever, chills (shivering)

Uncommon (may affect up to 1 in 100 people):

  • Injection site reactions: itching
  • Fatigue, lethargy, feeling sick (nausea), vomiting, diarrhea
  • Cough, muscle weakness, indigestion (dyspepsia), throat inflammation (oropharyngeal pain)

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

  • Abnormal lack of energy (asthenia), flushing, joint pain (arthralgia), dizziness, night sweats, rash, numbness or tingling (paresthesia), nasal inflammation (rhinorrhea), vertigo, excessive blood in the white of the eye (ocular hyperemia)
  • Pain in the limbs

Frequency not known: the frequency cannot be estimated from the available data:

  • Decrease in the number of certain types of particles in the blood called platelets; a low number of these can result in excessive bruising or bleeding (thrombocytopenia)
  • Swelling of the glands in the neck, armpit, or groin (lymphadenopathy)
  • Neurological disorders that can result in stiffness of the neck, confusion, numbness, pain, and weakness of the limbs, loss of balance, loss of reflexes, paralysis of part or all of the body (encephalomyelitis and transverse myelitis, brachial neuritis, Guillain-Barré Syndrome), facial paralysis (Bell's palsy), vision disorders due to optic nerve dysfunction (optic neuritis/neuropathy), seizures (including febrile seizures), fainting (syncope) shortly after vaccination
  • Inflammation of blood vessels (vasculitis) that can cause skin rashes and, in very rare cases, temporary kidney problems, dilation of blood vessels (vasodilation)
  • Chest pain
  • Wheezing, feeling of pressure in the throat, difficulty breathing (dyspnea).

Most side effects usually occurred within 3 days after vaccination and resolved within 3 days. The intensity of these side effects was mild to moderate.

Reporting of side effects

If you experience any side effects, talk to your doctor, pharmacist, or nurse, even if they are not listed in this leaflet. You can also report side effects directly through the Spanish Pharmacovigilance System for Human Use Medicines: https://www.notificaram.es. By reporting side effects, you can help provide more information on the safety of this medicinal product.

5. Storage of Efluelda Tetra

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

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

Store in a refrigerator (between 2 °C and 8 °C). Do not freeze. Keep the syringe in the outer packaging to protect it from light.

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.

6. Container Content and Additional Information

Efluelda Tetra Composition

The active principles are: Influenza virus (inactivated, split) of the following strains *:

  • Strain similar to A/Victoria/4897/2022 (H1N1)pdm09: (IVR-238).…. 60 micrograms HA**
  • Strain similar to A/Croatia/10136RV/2023 (H3N2): (X-425A)…...…60 micrograms HA **
  • Strain similar to B/Austria/1359417/2021: B/Michigan/01/2021 .……60 micrograms HA**
  • B/Phuket/3073/2013………………………….……………………...60 micrograms HA**

Per 0.7 ml dose

  • grown in embryonated chicken eggs

** hemagglutinin

This vaccine complies with the recommendations of the WHO (World Health Organization) (Northern Hemisphere) and the EU decision for the 2025/2026 campaign.

The other components are: a buffer solution containing sodium chloride, sodium phosphate monobasic, sodium phosphate dibasic, water for injectable preparations, and octoxinol-9.

Some components such as eggs (ovoalbumin, chicken proteins) or formaldehyde may be present in very small quantities (see Section 2).

Appearance ofEflueldaTetra andcontainer content

The vaccine, after careful shaking, is a colorless opalescent liquid.

Efluelda Tetra is an injectable suspension of 0.7 ml presented in a pre-filled syringe with or without a needle (in packs of 1, 5, or 10) or with a safety needle (in packs of 1 or 10).

Only some package sizes may be marketed.

Marketing Authorization Holder and Manufacturer

The marketing authorization holder is:

Sanofi Winthrop Industrie

82 avenue Raspail

94250 Gentilly

France

The manufacturer is:

Sanofi Winthrop Industrie

Voie de l’Institut - Parc Industriel d’Incarville

B.P 101

27100 Val de Reuil

France

Local Representative

sanofi-aventis, S.A.

C/ Rosselló i Porcel, 21

08016 Barcelona

Spain

Tel: +34 93 485 94 00

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

Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Germany, Denmark, Spain, Greece, Finland, France, Croatia, Hungary, Ireland, Italy, Latvia, Netherlands, Norway, Poland, Portugal, Romania, Sweden, Slovenia, Slovakia

Efluelda Tetra

United Kingdom (Northern Ireland)

Quadrivalent Influenza Vaccine (Split Virion, Inactivated) High Dose

Date of the last revision of this prospectus:July 2025

Other sources of information

The latest approved information on this medicinal product is available by scanning the QR code included in the packaging or at the following internet address: https://eflueldatetra-nh.info.sanofi

-----------------------------------------------------------------------------------------------------------------------

This information is intended solely for healthcare professionals:

As with all injectable vaccines, medical treatment and appropriate supervision should be available in case of an anaphylactic episode following administration of the vaccine.

The vaccine should reach room temperature before use.

Shake before use. The vaccine should not be used if it contains foreign particles in the suspension.

It should not be mixed with other medicinal products in the same syringe.

This vaccine should not be injected directly into any blood vessel.

See also Section 3. How to use Efluelda Tetra

?Preparation for administration

Instructions for using the safety needle with the Luer Lock syringe:

Image A: Safety needle (inside the bar)

Image B: Components of the safety needle (prepared for use)

Bar with white text on dark brown background showing the name of the componentGray cylinder with cap and transparent end showing a vertical line and arrows indicating parts as

Safety device with white text on textured dark brown backgroundPre-filled syringe with exposed needle and retracted safety protector showing the protection mechanism

Step 1:To attach the needle to the syringe, remove the central cap to expose the needle bar, and gently turn the needle on the Luer Lock adapter of the syringe until you feel a slight resistance.

Step 2:Remove the safety needle protector. The needle is covered by the safety device and the protector.

Step 3:

A:Separate the safety device from the needle and bring the syringe body to the angle shown.

B:Remove the protector in a straight line.

Hands holding syringe with needle inserted into skin, arrow indicates angle of insertion and another arrow direction of the plunger

Step 4:Once the injection is complete, lock (activate) the safety device using one of the three techniques illustrated (3) with one hand: surface activation, with the thumb, or with the index finger.

Note: Activation is verified by a "click" sound and/or tactile.

Syringe injecting medication into the skin with three steps indicated by check marks and stars

Step 5:Visually inspect the activation of the safety device. The safety device must be completely locked (activated)as shown in figure C.

Figure D shows that the safety device is NOT completely locked (not activated).

Needle connected to a device with notch and cylinder, showing a circle with a check mark next to itPre-filled syringe with retracted plunger and a black cross indicating not to press the plunger

Caution: Do not attempt to unlock (deactivate) the safety device by forcing the needle out of the safety device.?

The disposal of unused vaccines and all materials that have come into contact with them will be carried out in accordance with local regulations.

Online doctors for EFLUELDA TETRA Injectable Suspension in Pre-filled Syringe

Discuss questions about EFLUELDA TETRA Injectable Suspension in Pre-filled Syringe, including use, safety considerations and prescription review, subject to medical assessment and local regulations.

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Doctor

Chikeluo Okeke

General medicine 4 years exp.

Dr Chikeluo Okeke is an internal medicine doctor with extensive international clinical experience. Originally from Nigeria, he has worked across multiple European healthcare systems and currently practises in Sweden. This professional path has given him a strong understanding of different medical approaches and the ability to work effectively with patients from diverse cultural and linguistic backgrounds.

Dr Okeke focuses on general internal medicine and adult primary care, combining clinical accuracy with careful attention to lifestyle, personal context, and everyday health concerns. His consultations are particularly well suited for people who seek medical advice online, live abroad, or need clear guidance without unnecessary complexity.

He provides online consultations covering symptom assessment, prevention, and long-term management of chronic conditions, helping patients understand what is happening and decide on appropriate next steps.

Common reasons for consultation:

  • General internal medicine concerns and initial health assessment.
  • Acute symptoms such as fever, cough, infections, pain, or weakness.
  • Chronic conditions and treatment adjustment.
  • Blood pressure issues, fatigue, metabolic concerns.
  • Preventive consultations and routine check-ups.
  • Interpretation of laboratory results and medical reports.
  • Medical advice for patients receiving care online.

Dr Okeke is known for his clear communication, calm approach, and cultural awareness. He listens carefully, explains medical decisions in a structured way, and supports patients in making informed choices about their health.

Online consultations with Dr Chikeluo Okeke offer reliable internal medicine care without geographic limitations, focused on medical relevance, clarity, and patient comfort.

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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.
  • 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.

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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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Hocine Lokchiri

General medicine 21 years exp.

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.
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Doctor

Daniel Cichi

Family medicine 24 years exp.

Dr Daniel Cichi is a family medicine doctor with over 20 years of clinical experience. He provides online consultations for adults, supporting patients with acute symptoms, chronic conditions, and everyday health concerns that require timely medical guidance. His background includes work in emergency care, ambulance services, and family medicine, which allows him to assess symptoms quickly, identify warning signs, and help patients choose the safest next steps – whether that means home care, treatment adjustment, or in-person evaluation. Patients commonly consult Dr Daniel Cichi for: 

  • acute symptoms: fever, infections, flu-like illness, cough, sore throat, shortness of breath;
  • chest discomfort, palpitations, dizziness, fatigue, and blood pressure concerns;
  • digestive problems: abdominal pain, nausea, diarrhoea, constipation, reflux;
  • sexually transmitted infections, erectile dysfunction;
  • muscle, joint, and back pain, minor injuries, post-traumatic symptoms;
  • chronic conditions: hypertension, diabetes, high cholesterol, thyroid disorders, weight loss, hair loss;
  • review and interpretation of lab tests, imaging reports, and medical documents;
  • medication review and treatment adjustment;
  • medical advice while travelling or living abroad;
  • second opinions and guidance on whether in-person care is needed.

Dr Cichi’s consultations are structured and practical. He focuses on clear explanations, risk assessment, and actionable recommendations, helping patients understand their symptoms and make informed decisions about their health.

5.0 (71)
Doctor

Lina Travkina

Family medicine 13 years exp.

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.

5.0 (52)
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:

  • High blood pressure, blood pressure fluctuations, and cardiovascular risk prevention.
  • Chest pain, shortness of breath, arrhythmias (tachycardia, bradycardia, palpitations).
  • Leg swelling, chronic fatigue, reduced exercise tolerance.
  • EKG interpretation, lipid profile evaluation, cardiovascular risk assessment (heart attack, stroke).
  • Post-COVID-19 cardiac monitoring and care.
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.
  • Cancer prevention – screening strategies and risk assessment.
  • Holistic approach – symptom relief, complication prevention, and quality of life improvement.
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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Frequently Asked Questions

Is a prescription required for EFLUELDA TETRA Injectable Suspension in Pre-filled Syringe?

EFLUELDA TETRA Injectable Suspension in Pre-filled Syringe 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 EFLUELDA TETRA Injectable Suspension in Pre-filled Syringe?

The active ingredient in EFLUELDA TETRA Injectable Suspension in Pre-filled Syringe is influenza, inactivated, split virus or surface antigen. This information helps identify medicines with the same composition but different brand names.

Who manufactures EFLUELDA TETRA Injectable Suspension in Pre-filled Syringe?

EFLUELDA TETRA Injectable Suspension in Pre-filled Syringe is manufactured by Sanofi Winthrop Industrie. Pharmacy brands and packaging may differ depending on the distributor.

Which doctors can assess the use of EFLUELDA TETRA Injectable Suspension in Pre-filled Syringe 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 EFLUELDA TETRA Injectable Suspension in Pre-filled Syringe is appropriate, depending on your situation and local regulations. You can book an online consultation to discuss your symptoms and possible next steps.

How to buy EFLUELDA TETRA Injectable Suspension in Pre-filled Syringe in Spain?

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 EFLUELDA TETRA Injectable Suspension in Pre-filled Syringe in Madrid, Barcelona, Seville, or Valencia at any local pharmacy with a valid prescription.

To obtain a prescription, you can use Oladoctor:

What are the alternatives to EFLUELDA TETRA Injectable Suspension in Pre-filled Syringe?

Other medicines with the same active substance (influenza, inactivated, split virus or surface antigen) include ADJUPANRIX 3.75 micrograms EMULSION AND SUSPENSION FOR INJECTABLE EMULSION, EFLUELDA SUSPENSION FOR INJECTION IN PRE-FILLED SYRINGE, FLUAD SUSPENSION FOR INJECTION IN PRE-FILLED SYRINGE. 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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