There was a time when most psychopharmaceutical drugs were prescribed by psychiatrists. Those days are long gone and taking this class of drugs has become wildly popular. One in five Americans is currently on some kind of psychiatric medicine. And a lot of them are being prescribed by primary care doctors. Are they qualified to be doling out these pills? The New Yorker’s Suzanne Koven wonders whether mental health should be a primary doctor’s job. At this rate, they’ll need their own psychiatric drugs just to keep up with the demand.