title: Drug effects on heart rate and heart rate variability during a prolonged reaction task.
mesh_terms: D000328:Adult; D001463:Barbiturates / Q000494:pharmacology*; D006339:Heart Rate / Q000187:drug effects*; D006801:Humans; D008297:Male; D010645:Phentermine / Q000494:pharmacology*; D011930:Reaction Time
chemical_list: D001463:Barbiturates; D010645:Phentermine