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SYNAGIS 100 mg/1 ml INJECTABLE SOLUTION

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About the medicine

How to use SYNAGIS 100 mg/1 ml INJECTABLE 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 User

Synagis 50 mg/0.5ml solution for injection

Synagis 100 mg/1 ml solution for injection

Active substance: palivizumab

Read all of this leaflet carefully before your child is given this medicine because it contains important information for you and your child

  • Keep this leaflet, you may need to read it again.
  • If you have any further questions, ask your doctor or pharmacist.
  • If you get any side effects, talk to your doctor or pharmacist. This includes any possible side effects not listed in this leaflet. See section 4.

Contents of thepackage leaflet:

  1. What is Synagis and what is it used for
  2. What you need to know before your child is given Synagis
  3. How Synagis will be given to your child
  4. Possible side effects
  5. Storage of Synagis
  6. Contents of the pack and further information

1. What is Synagis and what is it used for

Synagis contains the active substance palivizumab, a monoclonal antibody that acts specifically against the respiratory syncytial virus (RSV).

Your child is at high risk of contracting a respiratory syncytial virus (RSV) infection.

Children who are more susceptible to contracting severe RSV disease (high-risk children) include premature babies (born at 35 weeks gestation or less) or babies with certain heart or lung problems.

Synagis is a medicine used to protect your child against this serious RSV disease.

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 your child is given Synagis

Your child must not be given Synagis

If they are allergic to palivizumab or any of the other ingredients of this medicine (listed in section 6). The signs and symptoms of a severe allergic reaction may include:

  • severe rash, hives or itching of the skin
  • swelling of the lips, tongue, and face
  • closure of the throat, difficulty swallowing
  • blue discoloration of the skin, lips, or under the nails
  • muscle weakness or floppiness
  • drop in blood pressure
  • loss of consciousness

Warnings and precautions

Be careful with Synagis

Other medicines and Synagis

No interactions have been observed between Synagis and other medicines. However, before administration of Synagis, inform your doctor or pharmacist of all the medicines your child is taking.

3. How Synagis will be given to your child

How often will Synagis be given to your child?

Synagis should be administered in doses of 15 mg/kg of body weight, once a month during the time when there is a risk of RSV infection. For the best protection of your child, it is necessary to follow the doctor's instructions on when to receive the next doses of Synagis.

If your child undergoes heart surgery (surgical intervention with extracorporeal circulation), an additional dose of Synagis will be administered after the surgery. The initial injection program will then be continued.

How will your child receive Synagis?

Synagis should be administered to your child by injection into the muscle, normally in the outer part of the thigh.

What should you do if a dose of Synagis is missed?

If a dose is missed, you should talk to your child's doctor as soon as possible. Each Synagis injection can protect your child for about a month before another dose is needed.

Follow exactly the administration instructions given by your doctor or pharmacist. If you are in doubt about how this medicine will be administered to your child, consult 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 medicine can cause side effects, although not everybody gets them.

Synagis may cause serious side effects including:

  • severe allergic reactions (such reactions can be life-threatening or fatal (see “Your child must not be given Synagis” for a list of signs and symptoms).
  • unusual bruising or clusters of small red spots on the skin.

Tell your doctor or seek medical help immediately if your child experiences any of the serious side effects listed above after receiving a dose of Synagis.

Additional side effects

Very common (at least 1 in 10 patients):

  • rash
  • fever

Common (between 1 and 10 in 100 patients):

  • pain, redness, or swelling at the injection site
  • pauses in breathing or other breathing difficulties

Uncommon (less than 1 in 100 patients):

  • seizures
  • hives

Reporting of side effects

If your child experiences any side effects, talk to your doctor, even if they are not listed in this leaflet. You can also report side effects directly via the national reporting system listed in Appendix V. By reporting side effects, you can help provide more information on the safety of this medicine.

5. Storage of Synagis

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

Do not use this medicine after the expiry date which is stated on the label 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 vial in the original package to protect it from light.

6. Contents of the pack and further information

Composition of Synagis

  • The active substance is palivizumab, 1 ml of Synagis solution for injection contains 100 mg of palivizumab.
  • Each 0.5 ml vial contains 50 mg of palivizumab.
  • Each 1 ml vial contains 100 mg of palivizumab.
  • The other ingredients are histidine, glycine, and water for injections.

Appearance and pack size

Synagis solution for injection is a clear and slightly opalescent solution and is available in 0.5 ml or 1 ml vials.

Pack size of 1.

Marketing authorisation holder

AstraZeneca AB

SE 151 85 Södertälje

Sweden

Manufacturer

AbbVie S.r.l.

04011 Campoverde di Aprilia (LT)

Italy

You can request more information about this medicine from the local representative of the marketing authorisation holder:

België/Belgique/Belgien

AstraZeneca S.A./N.V.

Tel: +32 2 370 48 11

Lietuva

UAB AstraZeneca Lietuva

Tel: +370 5 2660550

България

АстрАЗенека Фармасютикалс ЕООД

Тел.: +359 2 44 55 000

Luxembourg/Luxemburg

AstraZeneca S.A./N.V.

Tél/Tel: +32 2 370 48 11

Česká republika

AstraZeneca Czech Republic s.r.o

Tel: +420 222 807 111

Magyarország

AstraZeneca Kft.

Tel.: +36 1 883 6500

Danmark

AstraZeneca A/S

Tlf: +45 43 66 64 62

Malta

Associated Drug Co. Ltd

Tel: +356 2277 8000

Deutschland

AstraZeneca GmbH

Tel: +49 40 809034100

Nederland

AstraZeneca BV

Tel: 31 85 808 9900

Eesti

AstraZeneca

Tel: +372 6549 600

Norge

AstraZeneca AS

Tlf: +47 21 00 64 00

Ελλάδα

AstraZeneca A.E.

Τηλ: +30 2 106871500

Österreich

AstraZeneca Österreich GmbH

Tel: +43 1 711 31 0

España

AstraZeneca Farmacéutica Spain, S.A.

Tel: +34 91 301 91 00

Polska

AstraZeneca Pharma Poland Sp. z o.o.

Tel.: +48 22 245 73 00

France

AstraZeneca

Tél: +33 1 41 29 40 00

Portugal

AstraZeneca Produtos Farmacêuticos, Lda.

Tel: +351 21 434 61 00

Hrvatska

AstraZeneca d.o.o.

Tel: +385 1 4628 000

România

AstraZeneca Pharma SRL

Tel: +40 21 317 60 41

Ireland

AstraZeneca Pharmaceuticals (Ireland) DAC

Tel: +353 1609 7100

Slovenija

AstraZeneca UK Limited

Tel: +386 1 51 35 600

Ísland

Vistor hf.

Sími: +354 535 7000

Slovenská republika

AstraZeneca AB, o.z.

Tel: +421 2 5737 7777

Italia

AstraZeneca S.p.A.

Tel: +39 02 00704500

Suomi/Finland

AstraZeneca Oy

Puh/Tel: +358 10 23 010

Κύπρος

Αλκίτωρ Φαρμακευτική Λτδ

Τηλ: +357 22490305

Sverige

AstraZeneca AB

Tel: +46 8 553 26 000

Latvija

SIA AstraZeneca Latvija

Tel: +371 67377100

United Kingdom(Northern Ireland)

AstraZeneca UK Ltd

Tel: +44 1582 836 836

Date of last revision of this leaflet:

Detailed information on this medicine is available on the European Medicines Agency web site: http://www.ema.europa.eu

------------------------------[perforation to separate from patient information]-------------------

This information is intended only for healthcare professionals:

Instructions for administration

In order to improve the traceability of biological medicinal products, the name and batch number of the administered product should be clearly recorded.

Palivizumab should not be mixed with any other medicinal product or diluent.

Both the 0.5 ml and 1 ml vials contain an overfill to allow for the withdrawal of 50 mg or 100 mg, respectively.

Do not dilute the product.

Do not shake the vial.

To administer, remove the portion of the flip-off cap from the vial and clean the stopper with ethanol 70% or equivalent. Insert the needle into the vial and withdraw into the syringe the appropriate volume of solution. Palivizumab solution for injection does not contain preservatives, is for single use, and should be administered immediately after the dose has been drawn into the syringe.

Disposal of unused medicinal product or waste material should be in accordance with local requirements.

Palivizumab is administered once a month by intramuscular injection, preferably in the anterolateral aspect of the thigh. The gluteal muscle should not be used routinely as an injection site due to the risk of injury to the sciatic nerve. The injection should be administered using a standard aseptic technique. Volumes of injection greater than 1 ml should be administered in divided doses.

When using palivizumab 100 mg/1 ml, the volume of palivizumab (expressed in ml) to be administered once a month = (patient's weight in kg) multiplied by 0.15.

For example, the calculation for a baby weighing 3 kg:

(3 x 0.15) ml = 0.45 ml of palivizumab per month.

Online doctors for SYNAGIS 100 mg/1 ml INJECTABLE SOLUTION

Discuss questions about SYNAGIS 100 mg/1 ml INJECTABLE SOLUTION, including use, safety considerations and prescription review, subject to medical assessment and local regulations.

5.0 (25)
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.

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€70
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Doctor

Alina Tsurkan

Family medicine 13 years exp.

Dr. Alina Tsurkan is a licensed family medicine physician based in Portugal, offering online consultations for adults and children. She provides professional primary care, with a focus on prevention, accurate diagnosis, and long-term management of acute and chronic conditions.

Dr. Tsurkan supports patients with a wide range of health issues, including:

  • Respiratory infections: cold, flu, bronchitis, pneumonia, and lingering coughs.
  • ENT conditions: sinusitis, tonsillitis, otitis (ear infections), sore throat, allergic rhinitis.
  • Eye conditions: allergic or infectious conjunctivitis, red eyes, irritation.
  • Digestive issues: acid reflux (GERD), gastritis, irritable bowel syndrome (IBS), constipation, bloating, nausea.
  • Urinary and reproductive health: urinary tract infections (UTIs), cystitis, prevention of recurrent infections.
  • Chronic diseases: hypertension, elevated cholesterol, weight management.
  • Neurological complaints: headaches, migraines, sleep disturbances, fatigue, general weakness.
  • Children’s health: fever, infections, digestive issues, follow-ups, vaccination guidance.

She also provides:

  • IMT medical certificates for driving licence exchange in Portugal.
  • Personalised preventive care and wellness consultations.
  • Interpretation of test results and medical reports.
  • Follow-up care and medication review.
  • Support in managing multiple coexisting conditions.
  • Remote prescription management and medical documentation.

Dr. Tsurkan’s approach is evidence-based and holistic. She works closely with each patient to develop an individualised care plan that addresses both symptoms and root causes. Her goal is to empower patients to take control of their health and maintain well-being through lifestyle adjustments, routine check-ups, and early intervention.

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€55
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Doctor

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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€58
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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.

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€55
5.0 (32)
Doctor

Dmytro Horobets

Family medicine 7 years exp.

Dr. Dmytro Horobets is a licensed family medicine physician in Poland, specialising in endocrinology, diabetology, obesity management, gastroenterology, pediatrics, general surgery, and pain medicine. He offers online consultations for adults and children, providing personalised medical support for a wide range of acute and chronic health concerns.

Areas of expertise:

  • Endocrinology: diabetes type 1 and type 2, prediabetes, thyroid disorders, metabolic syndrome, hormonal imbalance.
  • Obesity medicine: structured weight management plans, nutritional counselling, obesity-related health risks.
  • Gastroenterology: acid reflux (GERD), gastritis, irritable bowel syndrome (IBS), liver and biliary conditions.
  • Pediatric care: infections, respiratory symptoms, digestive issues, growth and development monitoring.
  • General surgery support: pre- and post-surgical consultations, wound care, rehabilitation.
  • Pain management: chronic and acute pain, back pain, joint pain, post-traumatic pain syndromes.
  • Cardiovascular health: hypertension, cholesterol control, risk assessment for heart disease.
  • Preventive medicine: regular check-ups, health screenings, long-term management of chronic conditions.

Dr. Horobets combines evidence-based medicine with a patient-centred approach. He carefully evaluates each patient’s medical history and symptoms, offering clear explanations and structured treatment plans adapted to individual needs.

Whether you need help managing diabetes, tackling weight-related health issues, interpreting lab results, or receiving general family medicine support, Dr. Horobets provides professional online care tailored to your specific health goals.

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€60

Frequently Asked Questions

Is a prescription required for SYNAGIS 100 mg/1 ml INJECTABLE SOLUTION?
SYNAGIS 100 mg/1 ml INJECTABLE 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 SYNAGIS 100 mg/1 ml INJECTABLE SOLUTION?
The active ingredient in SYNAGIS 100 mg/1 ml INJECTABLE SOLUTION is palivizumab. This information helps identify medicines with the same composition but different brand names.
Who manufactures SYNAGIS 100 mg/1 ml INJECTABLE SOLUTION?
SYNAGIS 100 mg/1 ml INJECTABLE SOLUTION is manufactured by Astrazeneca Ab. Pharmacy brands and packaging may differ depending on the distributor.
Which doctors can assess the use of SYNAGIS 100 mg/1 ml INJECTABLE 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 SYNAGIS 100 mg/1 ml INJECTABLE 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 SYNAGIS 100 mg/1 ml INJECTABLE SOLUTION?
Other medicines with the same active substance (palivizumab) include SYNAGIS 50 mg/0.5 ml INJECTABLE SOLUTION, BEYFORTUS 100 mg injectable solution in pre-filled syringe, BEYFORTUS 50 mg Injectable Solution 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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