The move will allow pharmacists to automatically substitute the cheaper version, just as they do with generic pills for other kinds of drugs. It could save diabetics and health plans millions of dollars annually.
U.S. Food and Drug Administration
Esketamine is the first new drug treatment approved for depression in decades. Current drugs target the feel-good brain chemical serotonin, and can take weeks or months to kick in. Ketamine targets a chemical called glutamate that is thought to restore brain connections that help relieve depression.