Twelve patients with a history of cerebral ischemia were randomized to treatment with the N-methyl-D-aspartate antagonist dextromethorphan (60 or 90 mg p.o. q.i.d.) or placebo for 2 weeks in a randomized, safety study. Neuropsychological testing did not detect evidence of cognitive dysfunction; however, side effects including lightheadedness, drowsiness, nausea, decreased coordination, and unsteady gait were reported by several patients while taking dextromethorphan.
View details for Web of Science ID A1992JY06700009
View details for PubMedID 1477851