WASHINGTON (AP) - A treatment pulled off the market 30 years ago has won Food and Drug Administration approval as the only drug specifically designated to treat morning sickness.

That long-ago safety scare proved to be a big false alarm.

Monday's decision means a new version of the pill once named Bendectin will return to US pharmacies - this time called Diclegis (dye-KLEE'-gihs).

US doctors have had no officially approved treatment for morning sickness since lawsuits forced Bendectin off the market in 1983. But the drug's main ingredients are vitamin B6 and an over-the-counter antihistamine, and obstetricians often advised pregnant women how to mix up the right dose themselves.

Diclegis is made by a Canadian company that has long sold the medication in that country, and plans to begin US sales in June.