The monthly injection treatment replaces the need for some to take daily pills. The company says the price of the injections is comparable to the cost of the pill versions.
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.