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SYNAGIS 50 mg/0.5 ml INJECTABLE SOLUTION

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About the medicine

How to use SYNAGIS 50 mg/0.5 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 an 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 should 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 with other medicines have been observed with Synagis. 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 of RSV infection risk. 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 indicated by your doctor or pharmacist. If you are unsure 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 should not be given Synagis” for a list of signs and symptoms).
  • unusual bruising or groups of small red spots on the skin.

Call 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, one 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

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??????????? ???????? ????

Te?.: +359 2 44 55 000

Luxembourg/Luxemburg

AstraZeneca S.A./N.V.

Tél/Tel: +32 2 370 48 11

Ceská 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

Ελλ?δα

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

Κ?προς

Αλ?κτωρ Φαρµακευτικ? 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:

Administration instructions

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 tab on the vial cap 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 only 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. Injection volumes 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 3 kg baby:

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

Online doctors for SYNAGIS 50 mg/0.5 ml INJECTABLE SOLUTION

Discuss questions about SYNAGIS 50 mg/0.5 ml INJECTABLE SOLUTION, including use, safety considerations and prescription review, subject to medical assessment and local regulations.

5.0 (29)
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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5.0 (2)
Doctor

Svetlana Kolomeeva

Cardiology 18 years exp.

Dr. Svetlana Kolomeeva is a general practitioner and internal medicine doctor providing online consultations for adults. She helps patients manage acute symptoms, chronic conditions, and preventive care. Her clinical focus includes cardiovascular health, hypertension control, and managing symptoms like fatigue, weakness, sleep issues, and overall low energy.

Patients commonly seek her help for:

  • High blood pressure, headaches, dizziness, swelling, palpitations.
  • Diagnosis and management of hypertension, arrhythmias, and tachycardia.
  • Metabolic syndrome, excess weight, high cholesterol.
  • Chronic fatigue, insomnia, poor concentration, anxiety.
  • Respiratory symptoms: colds, flu, sore throat, cough, fever.
  • Digestive issues: heartburn, bloating, constipation, IBS symptoms.
  • Chronic conditions: diabetes, thyroid disorders.
  • Interpretation of lab tests and medical reports, therapy adjustment.
  • Second opinion and decision-making support.
  • Cardiovascular disease prevention and metabolic risk reduction.
  • Long-term follow-up and dynamic health monitoring.

Dr Kolomeeva combines clinical expertise with personalised care. She clearly explains diagnoses, guides patients through symptoms and treatment options, and provides actionable plans. Her consultations are designed not only to address current complaints but also to stabilise chronic conditions and prevent future complications. She supports patients through every stage of care – from first symptoms to ongoing health management.

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5.0 (2)
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).
  • Food and drug allergies, skin rashes, angioedema.
  • Atopic dermatitis, urticaria, contact allergies.
  • Allergen-specific immunotherapy (AIT) – initiation and ongoing management.
  • Abdominal pain, bloating, changes in bowel habits, nausea, heartburn.
  • High blood pressure and adjustment of baseline antihypertensive therapy.
  • Hyperlipidaemia and elevated cholesterol.
  • Cough, nasal congestion, fever, sore throat.
  • 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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0.0 (0)
Doctor

Марта Регеро Капілья

Allergology 8 years exp.

Dr Marta Reguero Capilla is an allergist and immunologist who works with both adults and children. She specialises in the diagnosis, treatment, and ongoing management of allergic and immune-related conditions through online consultations.

In her practice, Dr Reguero Capilla helps patients understand the causes of their symptoms, review test results, and choose appropriate treatment or monitoring strategies. Her consultations are suitable both for first-time assessments and for follow-up care over time.

Patients commonly consult Dr Marta Reguero Capilla for:

  • allergic rhinitis, seasonal allergies, and perennial allergy symptoms;
  • allergic conditions in adults and children;
  • bronchial asthma and allergy-related respiratory symptoms;
  • urticaria (acute and chronic) and angioedema;
  • food allergies and reactions to foods, additives, or medications;
  • atopic dermatitis, allergic rashes, and persistent itching;
  • unexplained or recurrent allergic reactions;
  • interpretation of laboratory tests, allergy testing, and immunology results;
  • immune system concerns, frequent infections, and reduced immune response;
  • ongoing medical follow-up and treatment adjustment.
Dr Reguero Capilla works in a structured and attentive manner, explaining medical decisions clearly and helping patients make informed choices about their own health or their child’s care.

When clinically appropriate, she may provide recommendations for further tests or referrals that patients can use within Spanish medical networks, including Sanitas and DKV, in accordance with the terms and conditions of those services.

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€60

Frequently Asked Questions

Is a prescription required for SYNAGIS 50 mg/0.5 ml INJECTABLE SOLUTION?
SYNAGIS 50 mg/0.5 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 50 mg/0.5 ml INJECTABLE SOLUTION?
The active ingredient in SYNAGIS 50 mg/0.5 ml INJECTABLE SOLUTION is palivizumab. This information helps identify medicines with the same composition but different brand names.
Who manufactures SYNAGIS 50 mg/0.5 ml INJECTABLE SOLUTION?
SYNAGIS 50 mg/0.5 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 50 mg/0.5 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 50 mg/0.5 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 50 mg/0.5 ml INJECTABLE SOLUTION?
Other medicines with the same active substance (palivizumab) include SYNAGIS 100 mg/1 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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