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Omacetaxine Mepesuccinate

Published: July 26, 2026Updated: August 25, 2026

Omacetaxine Mepesuccinate is an antineoplastic medication used to treat chronic myeloid leukemia (CML), particularly in patients who have failed or cannot tolerate other tyrosine kinase inhibitor therapies. It works by inhibiting protein synthesis and has shown activity against leukemic cells, including those with the T315I resistance mutation.

Quick summary

Omacetaxine Mepesuccinate is a chemotherapy agent used to treat chronic myeloid leukemia in patients who have not responded to other treatments.

Medically reviewed by WellAlly Editorial TeamLast reviewed August 25, 2026Editorial policy

Key facts at a glance

ATC
L01XX40
RxNorm
27100
Generic
Omacetaxine Mepesuccinate
Class
atc-l01
Brands
Synribo
Availability
rx
Lactation
unknown
Routes
—
Forms
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.

Primarily used for chronic myeloid leukemia (CML), especially in patients who have failed treatment with tyrosine kinase inhibitors like imatinib. It is also used in patients with the T315I mutation who cannot receive other targeted therapies.

Functions by blocking protein synthesis through inhibition of the 60S ribosomal subunit, preventing the initial elongation step of translation. It also exhibits hypomethylating properties by inhibiting DNA methyltransferases.

Administered as subcutaneous injections. Common side effects include myelosuppression (low blood cell counts), fatigue, and gastrointestinal symptoms. Requires regular blood count monitoring during treatment and should be used under the supervision of an experienced oncologist.

Official drug label

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Medical Disclaimer

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 25, 2026. · Read our editorial policy