title: Comparison of the effect of methylphenidate, diazepam and their combination on some psychophysiological variables.
mesh_terms: D000328:Adult; D001794:Blood Pressure / Q000187:drug effects; D003975:Diazepam / Q000494:pharmacology*; D004338:Drug Combinations; D006339:Heart Rate / Q000187:drug effects; D006801:Humans; D008297:Male; D008774:Methylphenidate / Q000494:pharmacology*; D011930:Reaction Time / Q000187:drug effects
chemical_list: D004338:Drug Combinations; D008774:Methylphenidate; D003975:Diazepam