IUPAC name




Molecular Weight

306.37 g/mol

Molecular Formula


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Mechanism Of Action:

Ruxolitinib belongs to the drug class called janus kinase inhibitors (JAK inhibitors). It acts as an inhibitor of the JAK1 and JAK2 protein kinases and functions by competitively inhibiting the ATP-binding catalytic site on both JAK1 and JAK2. This mechanism of action allows ruxolitinib to effectively hinder the activity of these protein kinase



Polycythemia Vera

Ruxolitinib is indicated for the treatment of polycythemia vera in adults who have a history of inadequate response to or intolerance to hydroxyurea. The FDA has designated it as an orphan drug for this specific therapeutic application.

Acute Graft-Versus-Host Disease

Ruxolitinib is prescribed for the treatment of acute graft-versus-host disease (GVHD) in adults and pediatric patients aged 12 years and above, specifically for cases that do not respond to corticosteroid treatment. This particular use of ruxolitinib has been granted orphan drug designation by the FDA

Chronic Graft-Versus-Host Disease

Some experts suggest that ruxolitinib can be considered as a second-line therapy option for patients with chronic GVHD who are already receiving corticosteroids. This recommendation applies to both adults and pediatric patients aged 12 years and older who have previously failed 1 or 2 systemic therapy regimens. It is important to note that the FDA has designated ruxolitinib as an orphan drug for the treatment of chronic GVHD, recognizing its potential benefits in this specific condition.