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Synribo

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Synribo

 SYNRIBO®
(omacetaxine mepesuccinate) Injection

DRUG DESCRIPTION

SYNRIBO contains the active ingredient omacetaxine mepesuccinate, a cephalotaxine ester. It is a protein synthesis inhibitor. Omacetaxine mepesuccinate is prepared by a semi-synthetic process from cephalotaxine, an extract from the leaves of Cephalotaxus sp. The chemical name of omacetaxine mepesuccinate is cephalotaxine, 4-methyl (2R)-hydroxyl-2-(4-hydroxyl-4-methylpentyl) butanedioate (ester).

Omacetaxine mepesuccinate has the following chemical structure:

SYNRIBO® (omacetaxine mepesuccinate) Structural Formula Illustration

The molecular formula is C29H39NO9 with a molecular weight of 545.6 g/mol. SYNRIBO for Injection is a sterile, preservative-free, white to off-white, lyophilized powder in a single-use vial. Each vial contains 3.5 mg omacetaxine mepesuccinate and mannitol. SYNRIBO is intended for subcutaneous administration after reconstitution with 1.0 mL of 0.9% Sodium Chloride Injection, USP. The pH of the reconstituted solution is between 5.5 and 7.0.

Last reviewed on RxList: 2/20/2014
This monograph has been modified to include the generic and brand name in many instances.

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