What we know — and don't know — about the FDA-approved postpartum depression pill

Postpartum depression affects up to 1 in 7 women. The first pill to treat it is expected to become available later this year, after the FDA approved it on Friday. (Getty Images)

The Food and Drug Administration has approved the first ever pill for treating postpartum depression, a potentially life-threatening condition that affects hundreds of thousands of new parents across the U.S. each year.

Manufacturers Sage Therapeutics and Biogen Inc. say the drug, Zurzuvae (zuranolone), will be commercially available in the fourth quarter of this year, which could be as soon as October.