Letermovir
Prevymis (letermovir) is a prescription antiviral medication used to prevent cytomegalovirus (CMV) infection in adult transplant recipients who are at high risk for developing CMV disease. It is specifically indicated for patients undergoing hematopoietic stem cell or solid organ transplantation.
Prevymis is an antiviral medication that prevents CMV infection in adult transplant recipients.
Key facts at a glance
- RxNorm
- 1988653
- Generic
- Prevymis
- Class
- brand-name
- Brands
- —
- Availability
- rx
- Lactation
- unknown
- Routes
- —
- Forms
- —
- 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.
Prevymis is used for prophylaxis (prevention) of cytomegalovirus (CMV) infection and disease in adult recipients of hematopoietic stem cell transplants or solid organ transplants who are at risk for CMV reactivation or primary infection.
Prevymis contains letermovir, which inhibits the CMV DNA terminase complex, a viral enzyme essential for viral DNA replication and packaging. By blocking this enzyme, the medication prevents CMV from multiplying and spreading in the body.
Prevymis is available as oral tablets and intravenous injection. Common side effects may include gastrointestinal symptoms. Patients should take medication exactly as prescribed by their healthcare provider. Regular monitoring may be required during treatment.
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 July 26, 2026. · Read our editorial policy