Menadione Sodium Bisulfite 10mg Injection is a synthetic Vitamin K3 analog used to treat Vitamin K deficiency and prevent bleeding disorders by increasing the production of blood clotting factors in the liver. Administered by a healthcare professional, it is used for hypoprothrombinemia, liver disease, certain anticoagulant overdoses, and prolonged antibiotic therapy. It is crucial to follow a doctor's directions, as side effects can include facial flushing, sweating, and injection site reactions, and it should not be taken with anticoagulants like Warfarin without medical supervision.