Human Papillomavirus Type 11 L1 Protein Vaccine
This is a recombinant subunit vaccine designed to prevent infections caused by human papillomavirus (HPV) type 11. It works by stimulating the immune system to produce antibodies against the L1 capsid protein of HPV-11, helping to prevent genital warts associated with this virus type. The vaccine is intended for use as part of immunization programs, typically administered before potential exposure to the virus.
A preventive vaccine targeting HPV type 11 to reduce the risk of associated genital warts.
Key facts at a glance
- RxNorm
- 798262
- Generic
- L1 Protein, Human Papillomavirus Type 11 Vaccine
- Class
- unclassified
- Brands
- Gardasil 9, Gardasil
- 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 infections caused by human papillomavirus type 11, which is associated with the development of genital warts (condyloma acuminata). Often included as part of quadrivalent or nonavalent HPV vaccination strategies that protect against multiple HPV types.
The vaccine contains recombinant L1 protein, which forms virus-like particles (VLPs) that mimic the structure of HPV-11. These VLPs stimulate the immune system to produce neutralizing antibodies without causing infection, providing protection against future HPV-11 exposure.
This is a prophylactic vaccine and does not treat existing HPV infections or lesions. It is most effective when administered before sexual debut and exposure to HPV. Like all vaccines, it may not provide complete protection in all individuals. Standard vaccination schedules and recommendations should be followed.
Official drug label
WellAlly may earn a referral fee from linked resources at no extra cost to you. Editorial content is never influenced by commercial relationships.
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