Eli Lilly

(LLY) - Get Report

received approval from the

Food and Drug Administration

for a new dosage of the popular antidepressant Prozac that patients will only have to take once a week.

Prozac Weekly is for patients whose depression symptoms have stabilized and require continuing treatment to prevent a relapse. The drug will be available by prescription in March.

Eli Lilly, which is based in Indianapolis, gained 48 cents, or 0.6%, to $77.87 in recent

New York Stock Exchange

trading.