From: Nick Mulcahy From: medscape.com The US Food and Drug Administration (FDA) issued a warning today that the commonly prescribed breast cancer therapies known as cyclin-dependent kinase 4/6 (CDK 4/6) inhibitors may cause rare but severe inflammation of the lungs. The related products include palbociclib (Ibrance, Pfizer), ribociclib (Kisqali, Novartis), and abemaciclib (Verzenio, Eli Lilly), which are approved for use …