Barigen 4 mg is made up of baricitinib, which is a prescribed medication acting on selected immune signaling pathways. Baricitinib is part of a drug class known as the Janus kinase inhibitors. It might be used for particular inflammatory disorders, based on local medical protocols. This 4 mg strength of baricitinib is meant for specific purposes and must be used under medical supervision. Tests for blood and infections might be suggested by your doctor while you are using Barigen 4 mg. Baricitinib increases chances of developing severe infections among others.