
Wellbutrin XL (bupropion HCl extended-release tablets) from GlaxoSmithKline has been approved for the prevention of major depressive episodes in patients with a history of seasonal affective disorder (SAD) and is the first drug approved for this indication, the FDA said at a press conference. The depressive episodes associated with SAD can last up to six months and tend to occur during the autumn and winter, when daylight hours are at a minimum.