title: A randomized, double-blind, crossover trial of modafinil on mood.
abstract: Modafinil, a medication for the excessive sleepiness associated with narcolepsy, has been hypothesized to improve not just alertness but mood as well. The purpose of this study was to determine how treatment with modafinil affects mood in healthy volunteers. Normal healthy volunteers (n = 12, 10 men and 2 women; 30-44 years) underwent a 3-day, counterbalanced, randomized, crossover, inpatient trial of modafinil (400 mg daily) versus placebo with 4-day washout period between 2 treatments. Mood was assessed daily using both the Positive and Negative Affect Schedule and a general mood scale, which consisted of 10 bipolar adjective ratings based on a severity scale ranging from 1 to 10. Modafinil increased general mood and Negative Affect scales relative to placebo and had a significant effect on Positive Affect scales. These results suggest that modafinil may have general mood-elevating effects accompanied by increased negative affect (anxiety). The findings may have implications for clinical practice, in particular for the adjunctive use of modafinil in treatment-resistant depression.
authors.affiliation: Department of Pharmacology, Dysfunction Center, Division of Clinical Pharmacology, Vanderbilt University, Nashville, TN 37232-2195, USA.
authors.forename: Indu
authors.initials: I
authors.lastname: Taneja
authors.forename: Kirsten
authors.initials: K
authors.lastname: Haman
authors.forename: Richard C
authors.initials: RC
authors.lastname: Shelton
authors.forename: David
authors.initials: D
authors.lastname: Robertson
mesh_terms: D000284:Administration, Oral; D000328:Adult; D000339:Affect / Q000187:drug effects*; D001559:Benzhydryl Compounds / Q000008:administration & dosage / Q000494:pharmacology*; D000697:Central Nervous System Stimulants / Q000008:administration & dosage / Q000494:pharmacology*; D018592:Cross-Over Studies; D004311:Double-Blind Method; D005260:Female; D006760:Hospitalization; D006801:Humans; D008297:Male; D000077408:Modafinil; D012016:Reference Values
chemical_list: D001559:Benzhydryl Compounds; D000697:Central Nervous System Stimulants; D000077408:Modafinil