Patient leaflets and SmPCs, drug interaction checker, official dosages and NHS pharmacy opening hours — all in one place.
Patient leaflets and SmPCs, drug interaction checker, official dosages and NHS pharmacy opening hours — all in one place.
The electronic medicines compendium (emc) no longer publishes a Summary of Product Characteristics for this product, which usually means it is no longer marketed in the UK. The patient leaflet below is kept for reference, but the product may not be available.
If you were prescribed this medicine, other products containing Pneumococcal polysaccharide conjugate vaccine (21-valent) may still be available. Do not stop your treatment — ask your pharmacist or GP what to use instead.
for
CAPVAXIVE is a pneumococcal vaccine given to:
2.
What you need to know before you or your child receive CAPVAXIVE
Do not receive CAPVAXIVE:
•
your or your child's immune system is weakened (which means the body is less able to fight off infections) or if you or your child are taking certain medicines that may weaken the immune system.
As with any vaccine, CAPVAXIVE may not fully protect all those who get the vaccine. Children CAPVAXIVE has not been studied in children younger than 2 years of age. Other medicines/vaccines and CAPVAXIVE CAPVAXIVE can be given to adults at the same time as the flu vaccine (inactivated influenza). Tell your doctor, pharmacist, or nurse if:
3.
Tell your doctor, pharmacist, or nurse if you or your child have been given a pneumococcal vaccine before. You or your child will receive 1 injection (1 dose of 0.5 mL). Your doctor, pharmacist or nurse will give the vaccine into the upper arm muscle. If you have any further questions on the use of CAPVAXIVE, ask your doctor, pharmacist, or nurse.
4.
Like all vaccines, CAPVAXIVE can cause side effects, although not everybody gets them. Serious side effects Rare (may affect up to 1 in 1 000 people): CAPVAXIVE may cause allergic (hypersensitivity) reactions including excessive contraction of the airway muscles causing breathing difficulty (bronchospasm). Get medical care right away if you or your child have symptoms of an allergic reaction, which may include: • Wheezing or trouble breathing • Swelling of the face, lips, or tongue 2
• •
Hives Rash
Other side effects The following side effects have been seen after the use of CAPVAXIVE in adults: Very common (may affect more than 1 in 10 people): Headaches • Pain at the injection site • • Feeling tired Common (may affect up to 1 in 10 people): Muscle aches (very common in people 18 to 49 years of age) • • Redness or swelling at the injection site (very common in people 18 to 49 years of age) • Fever Uncommon (may affect up to 1 in 100 people): Swelling of lymph nodes • • Dizziness • Feeling sick (nausea) Diarrhoea • • Vomiting • Joint pain Itching at injection site • • Chills • Bruising at injection site The following side effects have been seen after the use of CAPVAXIVE in children and adolescents 2 to less than 18 years of age: Very common (may affect more than 1 in 10 people): • Irritability Headaches • Pain at the injection site • • Feeling tired Redness or swelling at the injection site • Feeling of illness, discomfort, or unease • Common (may affect up to 1 in 10 people): Feeling sleepy • • Hives Muscle aches • • Joint pain • Fever Uncommon (may affect up to 1 in 100 people): Fainting • These side effects are generally mild or moderate and last a short time. Reporting of side effects If you get any side effects, talk to your doctor, pharmacist, or nurse. This includes any possible side effects not listed in this leaflet. You can also report side effects directly via the Yellow Card Scheme at 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 medicine. 3
5.
CAPVAXIVE
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 carton and syringe label 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 pre-filled syringe in the outer carton in order to protect from light. CAPVAXIVE should be administered as soon as possible after being removed from the refrigerator. However, in circumstances where CAPVAXIVE is temporarily held outside of refrigeration, the vaccine is stable at temperatures up to 25 °C for 96 hours. At the end of this time period CAPVAXIVE should be used or discarded. This information is intended to guide healthcare professionals in case of temporary temperature excursions only.
6.
What CAPVAXIVE contains The active substances are: Polysaccharides from pneumococcus types 3, 6A, 7F, 8, 9N, 10A, 11A, 12F, 15A, de-Oacetylated type 15B, 16F, 17F, 19A, 20A, 22F, 23A, 23B, 24F, 31, 33F and 35B (4 micrograms of each type); Each polysaccharide is linked to a carrier protein (CRM197). The polysaccharides and the carrier protein are not alive and do not cause disease. One dose (0.5 mL) contains approximately 65 micrograms carrier protein. The other ingredients are sodium chloride (NaCl), histidine, polysorbate 20 (E432), hydrochloric acid (HCl; for pH adjustment) and water for injections. For more information on polysorbate 20 (E432), see Section 2. What CAPVAXIVE looks like and contents of the pack CAPVAXIVE is a colourless, clear to opalescent solution for injection (injection), provided in a single-dose, pre-filled syringe (0.5 mL). CAPVAXIVE is available in pack sizes of 1 or 10 pre-filled syringes, either without needles, with 1 separate needle or with 2 separate needles per pre-filled syringe. Not all pack sizes may be marketed. Marketing Authorisation Holder and Manufacturer Marketing Authorisation Holder: Merck Sharp & Dohme (UK) Limited 120 Moorgate London EC2M 6UR United Kingdom Manufacturer: Merck Sharp & Dohme B.V. Waarderweg 39 2031 BN Haarlem The Netherlands
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For any information about this medicine, please contact: Merck Sharp & Dohme (UK) Limited Tel: +44 (0) 208 154 8000 [email protected]
This leaflet was last revised in April 2026. © 2026 Merck & Co., Inc., Rahway, NJ, USA and its affiliates. All rights reserved. II-011 <————————————————————————————————————————> The following information is intended for healthcare professionals only: • • • •
The vaccine should be used as supplied. Inspect the solution visually for particulate matter and discolouration prior to administration. Discard the vaccine if particulates are present and/or if it appears discoloured. Attach a needle with Luer lock connection by twisting in a clockwise direction until the needle fits securely on the syringe. CAPVAXIVE should be administered by intramuscular injection only. This vaccine should be administered preferably in the deltoid muscle of the upper arm, with care to avoid injection into or near nerves and blood vessels.
CAPVAXIVE can be administered concomitantly with quadrivalent influenza vaccine (split virion, inactivated) in adults. Different injectable vaccines should always be administered at different injection sites. Any unused medicinal product or waste material should be disposed of in accordance with local requirements. © 2026 Merck & Co., Inc., Rahway, NJ, USA and its affiliates. All rights reserved II-011
5
CAPVAXIVE solution for injection in pre-filled syringe comes as injection. Always follow the dose your doctor or pharmacist has given you, and read the leaflet that comes with the medicine.
The active substance in CAPVAXIVE solution for injection in pre-filled syringe is pneumococcal polysaccharide conjugate vaccine (21-valent).
This leaflet reproduces the patient information leaflet approved for CAPVAXIVE solution for injection in pre-filled syringe, as published on the electronic medicines compendium (emc). The version printed inside your medicine’s packaging is the one that applies to you.
Whether a medicine is available over the counter or on prescription only depends on its licence. Check the leaflet, or ask your pharmacist — they can tell you straight away.
The text above reproduces the patient information leaflet approved for this medicine, restructured for easier reading.
CAPVAXIVE is indicated for active immunisation for the prevention of invasive disease and pneumonia caused by Streptococcus pneumoniae in individuals 18 years of age and older.
CAPVAXIVE is indicated for active immunisation for the prevention of invasive disease and pneumonia caused by Streptococcus pneumoniae in children and adolescents 2 to less than 18 years of age who previously completed a primary paediatric pneumococcal vaccination regimen.
See sections 4.4 and 5.1 for information on protection against specific pneumococcal serotypes.
The use of CAPVAXIVE should be in accordance with official recommendations.
Posology
Individuals 18 years of age and older
1 dose (0.5 mL).
Children and adolescents 2 to less than 18 years of age who previously completed a primary paediatric pneumococcal vaccination regimen
1 dose (0.5 mL).
Based on the clinical experience with other pneumococcal conjugate vaccines, if the use of 23-valent pneumococcal polysaccharide vaccine (PPSV23) is considered appropriate, CAPVAXIVE should be administered first.
The need for revaccination with a subsequent dose of CAPVAXIVE has not been established.
Paediatric population
The safety and efficacy of CAPVAXIVE in children younger than 2 years of age have not been established. No data are available.
Method of administration
CAPVAXIVE should be administered by intramuscular injection only. This vaccine should be administered preferably in the deltoid muscle of the upper arm, with care to avoid injection into or near nerves and blood vessels.
For instructions on the handling of the vaccine before administration, see section 6.6.
Hypersensitivity to the active substances including diphtheria toxoid, or to any of the excipients listed in section 6.1.
Traceability
In order to improve the traceability of biological medicinal products, the name and the batch number of the administered product should be clearly recorded.
Anaphylaxis
As with all injectable vaccines, appropriate medical treatment and supervision should always be readily available in case of a rare anaphylactic event following the administration of the vaccine.
Concurrent illness
Vaccination should be postponed in individuals suffering from acute severe febrile illness or acute infection. The presence of a minor infection and/or low-grade fever should not delay vaccination.
Thrombocytopenia and coagulation disorders
As with other intramuscular injections, the vaccine should be given with caution in individuals receiving anticoagulant therapy or those with thrombocytopenia or any coagulation disorder (such as haemophilia) because bleeding or bruising may occur following an intramuscular administration in these individuals.
Anxiety-related reactions
Anxiety-related reactions, including vasovagal reactions (syncope), hyperventilation or stress‐related reactions may occur in association with vaccination as a response to the needle injection. Stress‑related reactions are temporary and resolve on their own. It is important that precautions are in place to avoid injury from fainting.
Immunocompromised individuals
Safety and immunogenicity data on CAPVAXIVE are not available for individuals in immunocompromised groups. Vaccination should be considered on an individual basis.
Based on experience with pneumococcal vaccines, immunocompromised individuals, including those receiving immunosuppressive therapy, may have a reduced immune response to CAPVAXIVE.
Protection
As with any vaccine, vaccination with CAPVAXIVE may not protect all vaccine recipients. This vaccine will only protect against Streptococcus pneumoniae serotypes included in the vaccine and to the cross-reactive serotype 15B (see sections 2 and 5.1).
Sodium
This medicinal product contains less than 1 mmol sodium (23 mg) per dose, that is to say, essentially 'sodium‑free'.
Polysorbate 20
This medicinal product contains 0.5 mg of polysorbate 20 in each dose. Polysorbates may cause allergic reactions.
Different injectable vaccines should always be administered at different injection sites.
Individuals 18 years of age and older
CAPVAXIVE can be administered concomitantly with quadrivalent influenza vaccine (split virion, inactivated). There are no data on the concomitant administration of CAPVAXIVE with vaccines other than influenza vaccines.
Children and adolescents 2 to less than 18 years of age
There are no data on the concomitant administration of CAPVAXIVE with other vaccines.
Pregnancy
There are no data on the use of CAPVAXIVE in pregnant women.
Animal studies do not indicate direct or indirect harmful effects with respect to pregnancy, embryo/foetal development, parturition or post-natal development (see section 5.3).
Administration of CAPVAXIVE in pregnancy should only be considered when the potential benefits outweigh any potential risks for the mother and the foetus.
Breast-feeding
It is unknown whether CAPVAXIVE is excreted in human milk.
Fertility
No human data on the effect of CAPVAXIVE on fertility are available. Animal studies in female rats do not indicate harmful effects (see section 5.3).
CAPVAXIVE has no or negligible influence on the ability to drive and use machines. However, some of the effects mentioned under section 4.8 “Undesirable effects” may temporarily affect the ability to drive or use machines.
Summary of the safety profile
Individuals 18 years of age and older
The most frequently reported adverse reactions following vaccination with CAPVAXIVE in individuals 18 years of age and older were solicited. Overall, the most frequently reported adverse reactions were injection-site pain (52.9%), fatigue (25.3%), headache (17.7%), and myalgia (10.4%).
The majority of local and systemic adverse reactions for individuals who received CAPVAXIVE were mild or moderate (based on intensity or size) and of short duration (≤ 3 days); severe reactions (defined as an event that prevents normal daily activity or size ˃ 10 cm) occurred in ≤ 1.0% of adults (see Table 1).
Paediatric population (2 to less than 18 years of age)
Overall, there were no clinically meaningful differences in the safety profile observed in children and adolescents 2 to less than 18 years of age when compared to individuals 18 years of age and older.
The most frequently reported adverse reactions following vaccination with CAPVAXIVE in children and adolescents 2 to less than 18 years of age were solicited. The most frequently reported (>10%) adverse reactions were injection-site pain (67.7%), injection-site erythema (24.3%), fatigue (20.1%), injection-site swelling (18.8%), headache (17.1%), malaise (13.3%), and irritability (11.6%). The majority of local and systemic adverse reactions for individuals who received CAPVAXIVE were mild or moderate (based on intensity or size) and of short duration (≤ 3 days). One serious adverse event (SAE) syncope (0.2%) was assessed to be related to CAPVAXIVE.
Tabulated list of adverse reactions
Unless otherwise stated the frequency categories are based on the safety of CAPVAXIVE assessed in 6 clinical studies, conducted across the Americas, Europe, Asia Pacific and Africa which included 4 914 individuals 18 years of age and older; with or without stable underlying medical conditions. Frequency data for individuals 2 to less than 18 years of age are based on one clinical study conducted in 874 children and adolescents at increased risk for pneumococcal disease who had previously completed a primary paediatric pneumococcal vaccination regimen.
Adverse reactions reported for all age groups are listed in this section per system organ class, in decreasing order of frequency and seriousness. The frequency is defined as follows:
- Very common (≥ 1/10)
- Common (≥ 1/100 to < 1/10)
- Uncommon (≥ 1/1 000 to < 1/100)
- Rare (≥ 1/10 000 to < 1/1 000)
- Very rare (< 1/10 000)
- Not known (cannot be estimated from the available data).
Table 1: Tabulated list of adverse reactions
System Organ Class
Adverse Reactions
Frequency
Adults
Children and adolescents 2 to less than 18 Y
Blood and lymphatic system disorders
Lymphadenopathy
Uncommon
-
Immune system disorders
Hypersensitivity reaction, including bronchospasm
Rare
-
Psychiatric disorders
Irritability
-
Very common†
Nervous system disorders
Headache
Very common†
Very common†
Dizziness
Uncommon
-
Somnolence
-
Common†
Syncope
-
Uncommon
Gastrointestinal disorders
Nausea
Uncommon
-
Diarrhoea
Uncommon
-
Vomiting
Uncommon
-
Skin and subcutaneous tissue disorders
Urticaria
-
Common†
Musculoskeletal and connective tissue disorders
Myalgia
Common*†
Common†
Arthralgia
Uncommon
Common†
General disorders and administration site conditions
Injection-site pain
Very common†
Very common†
Fatigue
Very common†
Very common†
Injection-site erythema
Common*†
Very common†
Injection-site swelling
Common*†
Very common†
Pyrexia
Common†
Common†
Injection-site pruritus
Uncommon
-
Chills
Uncommon
-
Injection-site bruising
Uncommon
-
Malaise
-
Very common†
* very common in individuals 18 to 49 years of age.
† Indicates solicited adverse events. Different adverse events were solicited for adults (≥18 years of age) and paediatric participants (2 to <18 years of age). For adults, headache, myalgia, injection-site pain, fatigue, injection-site erythema, injection-site swelling and pyrexia were solicited from Day 1 through Day 5 following vaccination. For paediatric participants, all adverse events solicited in adults were also solicited, as well as irritability, somnolence, urticaria, arthralgia and malaise from Day 1 through Day 5 following vaccination.
Other special populations
Safety in individuals 65 years of age and older
A lower frequency of local injection-site reactions was observed in participants 75 years of age and older compared to participants 65 to 74 years of age. There were no clinically meaningful differences for other adverse events in participants 65 to 74 years of age and 75 years of age and older who received CAPVAXIVE.
Safety in adults living with HIV
The safety profile of CAPVAXIVE in adults living with HIV was generally comparable to the safety profile of pneumococcal 15-valent conjugate vaccine (PCV15) followed by PPSV23 (see section 5.1).
Safety in adults with increased risk for pneumococcal disease
An additional study, Protocol 008, was conducted to evaluate CAPVAXIVE in pneumococcal vaccine‑naïve adults 18 to 64 years of age with one or more prespecified chronic medical conditions known to increase the risk of pneumococcal disease (see section 5.1). The safety profile of CAPVAXIVE was generally comparable to PCV15 followed by PPSV23 and generally similar to the profile observed in the pivotal studies.
Reporting of suspected adverse reactions
Reporting suspected adverse reactions after authorisation of the medicinal product is important. It allows continued monitoring of the benefit/risk balance of the medicinal product. Healthcare professionals are asked to report any suspected adverse reactions via the Yellow Card Scheme at: www.mhra.gov.uk/yellowcard or search for MHRA Yellow Card in the Google Play or Apple App Store.
Overdose with CAPVAXIVE is unlikely due to its presentation as a pre-filled syringe.
Medicines sold in Romania with the same active substance: Cunoscut în România ca
⚠ Not the same combination. This medicine contains Pneumococcal polysaccharide conjugate vaccine (21-valent). The products below do not contain exactly the same set of active substances — they are not direct substitutes.
Some of these do not contain exactly the same active substances — check each one. The strength, the form and whether you need a prescription can differ. Always ask a pharmacist before you switch. Romanian medicines in the UK →
Medicines sold in Poland with the same active substance: W Polsce znany jako
⚠ Same active substance, but a different pharmaceutical form (for example a gel instead of a tablet). Not interchangeable — ask a pharmacist.
Same active substance. The strength, the form and whether you need a prescription can differ. Always ask a pharmacist before you switch. Polish medicines in the UK →
Ask anything about CAPVAXIVE solution for injection in pre-filled syringe. The assistant answers only from this leaflet — if the leaflet does not cover it, it will say so. It does not give medical advice.
Answers come from the patient leaflet published on the electronic medicines compendium (emc). They are not medical advice. Ask a pharmacist or your GP if you are unsure. For urgent help call NHS 111, or 999 in an emergency.
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