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Vitamin Mk 4 (MENATETRENONE)

discontinued Small molecule

Menatetrenone works by acting as a vitamin K analog to promote blood clotting.

Vitamin Mk 4, also known as menatetrenone, is a small molecule drug in the menatetrenone class that targets alpha-synuclein. It is currently used to treat hemorrhagic disease of the newborn due to vitamin K deficiency. The commercial status of Vitamin Mk 4 is unclear, as it is not known whether it is patented or generic, and it is not approved by the FDA for any indications other than its original use. The bioavailability of Vitamin Mk 4 is 23%, but its half-life is unknown. As a result, its use is limited to its original approved indication.

At a glance

Generic nameMENATETRENONE
Drug classmenatetrenone
TargetAlpha-synuclein
ModalitySmall molecule
Therapeutic areaHematology
Phasediscontinued

Mechanism of action

Imagine your blood as a liquid that needs to be able to clot to stop bleeding when you get hurt. Vitamin K helps your body make the proteins that allow your blood to clot. Menatetrenone is a synthetic version of vitamin K that can help your body make these proteins and stop bleeding.

Approved indications

Common side effects

Key clinical trials

Primary sources

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SourceUsed for
ClinicalTrials.govTrial enrolment, design, endpoints, results