Nomen Omen: The Myth of God Janus

The paper explores the concept of "nomen omen," suggesting that the name Janus, associated with Janus kinase inhibitors, foreshadows the drug class's characteristics and destiny. Janus, the Roman god of beginnings and transitions, is paralleled with JAK inhibitors, which have revolutionized treatments for dermatological diseases like alopecia areata and atopic dermatitis. These inhibitors, named for their dual kinase-like domains, reflect Janus's duality and have become crucial in dermatology, marking a new era in treating conditions with previously unsatisfactory outcomes. The paper concludes that the name Janus is fitting, as JAK inhibitors continue to evolve and benefit more patients.