Neisseria Meningitidis Serogroup Y Conjugate Vaccine
This vaccine protects against Neisseria meningitidis serogroup Y, a bacterium that causes serious infections including meningitis and bloodstream infections. It contains capsular polysaccharides from serogroup Y conjugated to diphtheria toxoid protein to enhance immune response, particularly in younger age groups.
A conjugate vaccine that protects against meningococcal disease caused by serogroup Y bacteria.
Key facts at a glance
- RxNorm
- 797635
- Generic
- Neisseria Meningitidis Serogroup Y Capsular Polysaccharide Diphtheria Toxoid Protein Conjugate Vaccine
- Class
- unclassified
- Brands
- Menactra
- Availability
- rx
- Lactation
- unknown
- Routes
- —
- Forms
- prefilled syringe, injection
- Regions
- US, EU, CN, JP
- Monitoring
- —
This page is for informational purposes only.
Do not use this information to diagnose yourself or to replace a physician's advice. Always consult a qualified healthcare provider before starting, stopping, or changing any medication. If you believe you are experiencing a medical emergency, call your local emergency number immediately.
Prevention of invasive meningococcal disease caused by Neisseria meningitidis serogroup Y. Recommended for adolescents, college students living in dormitories, military recruits, individuals with certain immune conditions or functional asplenia, and those traveling to or residing in areas with high endemic rates.
The vaccine contains purified capsular polysaccharides from N. meningitidis serogroup Y chemically linked (conjugated) to diphtheria toxoid protein. This conjugation converts the T-cell independent polysaccharide antigen into a T-cell dependent antigen, producing stronger antibody responses and immunological memory in recipients of all ages.
Common side effects may include injection site reactions, fatigue, and headache. Contraindications include severe allergic reactions to any vaccine component. Vaccination does not protect against all meningococcal serogroups. Inform healthcare providers of any history of Guillain-Barré syndrome or bleeding disorders before administration.
Official drug label
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This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.
This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.
If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.
Medically reviewed by WellAlly Editorial Team Last reviewed August 29, 2026. · Read our editorial policy