What is a Patient Information Leaflet and why is it useful?

The Patient Information Leaflet (PIL) is the leaflet included in the pack with a medicine. It is written for patients and gives information about taking or using a medicine. It is possible that the leaflet in your medicine pack may differ from this version because it may have been updated since your medicine was packaged.

Below is a text only representation of the Patient Information Leaflet. The original leaflet can be viewed using the link above.

The text only version may be available in large print, Braille or audio CD. For further information call emc accessibility on 0800 198 5000. The product code(s) for this leaflet is: PL06745/0087 .



STAMARIL, powder and solvent for suspension for injection in pre-filled syringe

Yellow fever vaccine (Live)

Read all of this leaflet carefully before you or your child 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 for you or your child only. Do not pass it on to others.
  • If you get any side effects talk to your doctor, pharmacist or nurse. This includes any possible side effects not listed in this leaflet. See Section 4.

What is in this leaflet

1. What STAMARIL is and what it is used for
2. What you need to know before you or your child use STAMARIL
3. How to use STAMARIL
4. Possible side effects
5. How to store STAMARIL
6. Contents of the pack and other information

1. What STAMARIL is and what it is used for

STAMARIL is a vaccine that provides protection against a serious infectious disease called yellow fever.

Yellow fever occurs in certain areas of the world and is spread to man through the bites of infected mosquitoes.

STAMARIL is given to people who:

  • are travelling to, passing through or living in an area where yellow fever occurs,
  • are travelling to any country that requires an International Certificate of Vaccination for entry (this may depend on the countries previously visited during the same trip),
  • may handle infectious materials such as laboratory workers.

To obtain a valid vaccination certificate against yellow fever, it is necessary to be vaccinated in an approved vaccination centre so that an International Certificate of Vaccination can be issued. This certificate is valid from 10 days after the first dose of vaccine. When a booster is needed, the certificate (see Section 3) is valid immediately after the injection.

2. What you need to know before you or your child use STAMARIL

It is important to tell the doctor or nurse if any of the points below apply to you or your child. If there is anything you do not understand, ask the doctor or nurse to explain.

Do not use STAMARIL if you or your child:

  • are allergic to:
    • the active substance, or
    • any of the other ingredients of this vaccine (listed in Section 6), or
    • eggs or chicken proteins.
  • have experienced a severe allergic reaction after a previous dose of any yellow fever vaccine,
  • is less than 6 months old,
  • have a poor or weakened immune system for any reason, such as illness or medical treatments (for example corticoids or chemotherapy),
  • have a weakened immune system due to HIV infection. Your doctor will advise you if you can still receive STAMARIL based on the results of your blood tests,
  • are infected with HIV and have active symptoms due to the infection,
  • have a history of problems with your thymus gland or have had your thymus gland removed for any reason,
  • have an illness with a high or moderate temperature or an acute illness. The vaccination will be postponed until you have recovered.

Warning and precautions

Talk to your doctor, pharmacist or nurse before using STAMARIL.

  • If you are over 60 years old or if your child is less than 9 months as you have an increased risk of certain types of severe but rare reactions to the vaccine (including serious reactions that affect the brain and nerves, and vital organs, see Section 4). You will only be given the vaccine if the risk of infection with the virus is well established in countries where you are going to stay.
  • If your child is aged 6 to 9 months. STAMARIL may be given to children aged between 6 and 9 months only in special situations and on the basis of current official advice.
  • If you or your child are infected by the HIV virus but do not have active symptoms due to the infection. Your doctor will advise if STAMARIL can be given based on the results of laboratory tests and specialist advice.
  • If you or your child have any bleeding disorder (such as haemophilia or low level of platelets) or are taking any medicines that stop the blood clotting normally. You can still be given STAMARIL provided that it is injected under the skin and not into muscle (see Section 3).
  • If you had any allergic reaction to latex. The tip cap of the pre-filled syringe contains a natural rubber latex derivative which may cause an allergic reaction.

As with all vaccines, STAMARIL may not fully protect all persons who are vaccinated.

Fainting can occur following, or even before, any needle injection. Therefore tell your doctor or nurse if you or your child fainted with a previous injection.

Other medicines and STAMARIL

Tell your doctor or pharmacist if you are taking, have recently taken or might take any other medicines.

If you have recently had any treatment or medicine which may have weakened your immune system, the vaccination must be delayed until your laboratory results show that your immune system has recovered. Your doctor will advise you when it is safe for you to be vaccinated.

STAMARIL can be given at the same time as measles vaccine or vaccines against typhoid fever (those containing the Vi capsular polysaccharide) and/or hepatitis A.

Vaccination with STAMARIL may lead to false positive results of blood tests for dengue or Japanese encephalitis. If you or your child have in the future such tests prescribed, please inform your doctor about this vaccination.

Pregnancy, breast-feeding

If you are pregnant, or breast-feeding, think you may be pregnant or are planning to have a baby, ask your doctor or pharmacist for advice before being vaccinated.

You should not receive STAMARIL unless this cannot be avoided. Your doctor or pharmacist can advise you on whether it is essential that you are vaccinated while pregnant or breastfeeding.

STAMARIL contains sodium, potassium and sorbitol

This medicine contains less than 1 mmol sodium (23 mg) per dose that is to say essentially “sodium free”, and less than 1 mmol potassium (39 mg) per dose that is to say essentially “potassium free”.

This medicine contains approximately 8 mg of sorbitol per dose.

3. How to use STAMARIL


STAMARIL is given as a single, 0.5 millilitre dose to adults and children from 6 months of age.

The first dose should be given at least 10 days before protection from yellow fever is needed. This is because it takes 10 days for the first dose of vaccine to work and provide good protection against the yellow fever virus. The protection provided by this dose is expected to last at least 10 years and may be life-long.

A booster with one dose (0.5 millilitre) may be needed:

  • if you or your child had an insufficient response to the first dose,
  • or after at least 10 years if it is required as a condition of entry in some countries.

How STAMARIL is given

STAMARIL is given as an injection by a doctor or nurse. It is usually injected just underneath the skin but it can be given into a muscle.

It must not be injected into a blood vessel.

If you or your child use more STAMARIL than you should

In some cases, more than the recommended dose was used.

In these cases, when side effects were reported, the information was in line with what is described in Section 4.

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

4. Possible side effects

Like all medicines, this vaccine can cause side effects, although not everybody gets them.

Serious side effects

The following serious side effects have sometimes been reported:

Allergic reactions:

  • Rash, itching or hives on the skin
  • Swelling of the face, lips, tongue or other parts of the body
  • Difficulty swallowing or breathing
  • Loss of consciousness

Reactions affecting the brain and nerves:

These may occur within one month of the vaccination and have sometimes been fatal.

Symptoms include:

  • High fever with headache and confusion
  • Extreme tiredness
  • Stiff neck
  • Inflammation of brain and nerve tissues
  • Fits
  • Loss of movement or feeling in part or all of the body (Guillain-Barré Syndrome or Focal neurological deficit)

Serious reaction affecting vital organs:

This may occur within 10 days of the vaccination and may have a fatal outcome. The reaction can resemble an infection with the yellow fever virus. It generally begins with feeling tired, fever, headache, muscle pain and sometimes low blood pressure. It may then go on to a severe muscle and liver disorder, drops in number of some types of blood cells resulting in unusual bruising or bleeding and increased risk of infections, and loss of normal functioning of the kidneys and lungs.

If you experience ANY of the above symptoms contact your doctor IMMEDIATELY

Other side effects

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

  • Headache
  • Mild or moderate tiredness or weakness (asthenia)
  • Pain or discomfort at the injection site
  • Muscle pains
  • Fever (in children)
  • Vomiting (in children)

Common (may affect up to 1 in 10 people)

  • Fever (in adults)
  • Vomiting (in adults)
  • Painful joints
  • Feeling sick (nausea)
  • Reactions at the injection site: rednesss, bruising, swelling or appearance of a hard lump

Uncommon (may affect up to 1 in 100 people)

  • Dizziness
  • Stomach pains
  • A pimple (papule) at the injection site

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

  • Diarrhoea
  • Runny, blocked or itchy nose (rhinitis)

Not known (frequency cannot be estimated from the available data)

  • Swollen glands (lymphadenopathy)
  • Numbness or pins and needles sensation (paresthesia)
  • Flu-like illness

Additional side effects in children

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

  • Irritability, crying
  • Appetite loss
  • Drowsiness

These side effects usually occurred within the 3 days following vaccination and lasted usually not more than 3 days. Most of these side effects were of mild intensity.

Reporting of side effects

If you get any side effects, talk to your doctor or pharmacist. This includes any possible side effects not listed in this leaflet.

In Ireland

You can also report side effects directly via

HPRA Pharmacovigilance
Earlsfort Terrace
IRL - Dublin 2
Tel: +353 1 6764971
Fax: +353 1 6762517
Website: www.hpra.ie

By reporting side effects you can help provide more information on the safety of this medicine.

In the UK

You can also report side effects directly via the Yellow Card Scheme at http://www.mhra.gov.uk/yellowcard or search for MHRA Yellow Card in the Google Play or Apple App store.

By reporting side effects you can help provide more information on the safety of this vaccine.

5. How to store STAMARIL

  • Keep out of the sight and reach of children.
  • Do not use this vaccine after the expiry date which is stated on the carton after EXP. The expiry date refers to the last day of that month.
  • Store in a refrigerator (2°C - 8°C). Do not freeze.
  • Keep the vial of powder and the syringe of solvent in the outer carton in order to protect from light.
  • Use immediately after reconstitution.
  • Do not throw away any medicines via wastewater or household waste. Ask your pharmacist how to throw away medicines you no longer use. These measures will help protect the environment.

6. Contents of the pack and other information

What STAMARIL contains

After reconstitution, for one dose (0.5 ml):

  • The active substance is:
    Yellow fever virus1 17D-204 strain (live, attenuated) ........................................... not less than 1000 IU
    1 produced in specified pathogen-free chick embryos
  • The other ingredients are:
    Lactose, sorbitol, L-Histidine hydrochloride, L-Alanine, sodium chloride, potassium chloride, disodium phosphate dihydrate, potassium dihydrogen phosphate, calcium chloride, magnesium sulphate and water for injections.

What STAMARIL looks like and contents of the pack

STAMARIL is presented as a powder and solvent for suspension for injection (powder in a vial (0.5 ml dose) + solvent in a pre-filled syringe (0.5 ml dose) with or without needle). Pack size 1, 10, 20.

After reconstitution the suspension is beige to pink beige, more or less opalescent.

Not all pack sizes may be marketed.

Marketing Authorisation Holder

Sanofi Pasteur Europe
14 Espace Henry Vallée
69007 Lyon


Sanofi Pasteur
14 Espace Henry Vallée 69007

1225 Budapest
Campona u.1. (Harbor Park)

Distributed by:

United Kingdom:

410 Thames Valley Park Drive
Tel: 0845 372 7101


sanofi-aventis Ireland T/A SANOFI
Citywest Business Campus
Dublin 24
Tel: +353 (0) 1 4035 600

This medicinal product is authorised in the Member States of the EEA under the following name:

STAMARIL: Austria, Belgium, Bulgaria, Czech Republic, Denmark, Estonia, Finland, France, Germany, Hrvatska, Hungary, Ireland, Italy, Latvia, Lithuania, Luxemburg, Malta, Poland, Portugal, Romania, Slovakia, Spain, Sweden, The Netherlands, United Kingdom, Iceland, Norway.

This leaflet was last revised in 05/2020

Other sources of information

Detailed information on this medicine is available on the website of: Medicines and Healthcare Products Regulatory Agency (MHRA) or The Health Products Regulatory Authority (HPRA).