Fig. 2From: Combination of dextromethorphan and memantine in treating bipolar spectrum disorder: a 12-week double-blind randomized clinical triala Difference in symptoms of depression in BD-II patients taking add-on DM30, MM5, and DM30 + MM5 versus placebo. b Difference in plasma BDNF levels in BD-II patients taking add-on DM30, MM5, and DM30 + MM5 versus placeboBack to article page