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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.

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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:

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  • 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.
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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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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).
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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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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.
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  • 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.
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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.
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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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Bulat Garipov

General medicine 15 years exp.

Dr. Bulat Garipov is a radiologist with more than 15 years of experience, specializing in magnetic resonance imaging (MRI). Throughout his professional career, he has worked in leading diagnostic imaging centers, both in on-site practice and teleradiology, which has allowed him to develop a broad and versatile approach to radiology.

Over the years, he has gained solid experience in interpreting MRI studies in various areas, including:

  •  Neuroimaging
  •  Musculoskeletal system (MSK)
  •  Angiography
  •  Abdomen and pelvis
  •  Soft tissues

Additionally, Dr. Garipov is open to new collaboration opportunities in radiology and teleradiology projects. He offers his expertise in MRI, providing both first and second readings of studies, as well as advanced image interpretation, ensuring accurate and high-quality diagnostics.

You could consult Dr. Bulat Garipov in cases where accurate interpretation of MRI studies or a second expert opinion is required. His expertise is especially valuable in cases of suspected neurological conditions, back and joint pain, vascular disorders, as well as in the diagnosis of abdominal and pelvic diseases. The doctor also provides support in complex or unclear clinical situations, including the review of previously performed studies, which helps improve diagnostic accuracy and determine the optimal treatment strategy. A teleradiology format is available, allowing you to receive a professional opinion remotely.

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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.
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  • 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.
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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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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.
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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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Doctor

Alexander Nazarchuk

Allergology 7 years exp.

Dr. Alexander Nazarchuk is a physician specialising in allergology and internal medicine. He provides online consultations for adults, following the principles of evidence-based medicine — no outdated treatments or unnecessary tests, with clear explanations and a personalised approach. He helps patients with a wide range of allergic and therapeutic conditions, from common day-to-day complaints to complex cases involving allergies, gastrointestinal issues, cardiovascular concerns, respiratory symptoms, and more.

You can consult Dr. Nazarchuk for:

  • Test interpretation and guidance on diagnostic plans.
  • Allergic rhinitis, hay fever, bronchial asthma (including severe cases).
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  • Abdominal pain, bloating, changes in bowel habits, nausea, heartburn.
  • High blood pressure and adjustment of baseline antihypertensive therapy.
  • Hyperlipidaemia and elevated cholesterol.
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  • Anaemia, including iron deficiency and related conditions.
  • Other issues related to allergology and internal medicine.

During consultations, Dr. Nazarchuk takes a thorough, structured approach — analysing symptoms, identifying potential causes, and helping patients make informed decisions. Whether treatment, further investigation, or monitoring is needed, he explains each step clearly so you understand your health and how best to manage it.

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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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