What are boxed warnings (so-called “black box warnings”)?

By Rajnish Mago, MD (bio) We have all heard of “black box warnings” and they sound very scary, don’t they? Except that there is no such thing. At least not technically. What are commonly but incorrectly called  “black box warnings” should correctly be called “boxed warnings.” These are warnings in the Prescribing Information (also called…