Fatigue as a residual symptom of depression.

FUNDING: There was no funding for the development and writing of this article. FINANCIAL DISCLOSURES: Dr. Targum has served as a consultant to, received grant/research support/honoraria from, owns stock options in, or owns copyrights to the following companies: Acadia, Affectis, Alkermes inc., Amgen, AstraZeneca, BioMarin, BrainCells Inc., CeNeRx, Cephalon, Cypress, CTNI MGH, Dynogen, EnVivo Pharmaceuticals, Euthymics, Forest Research, Functional Neuromodulation inc, Eli Lilly and Company, Johnson … Johnson PRD, INC Research, Methylation Sciences Inc., Memory Pharmaceuticals, Naurex Inc, NeoSync, Neurophage, Novartis Pharmaceuticals, Novartis Bioventures, Nupathe, Prana Biotechnology Ltd., Sunovion, Targacept, TauRx, Transcept, Wyeth labs. Dr. Fava has served as a consultant to, received grant/research support/honoraria from, owns stock options in, or owns copyrights to the following companies: Abbott Laboratories; Adamed, Co.; Affectis Pharmaceuticals AG; Alkermes inc., Amarin Pharma Inc.; Aspect Medical Systems; AstraZeneca; Auspex Pharmaceuticals; Bayer AG; Best Practice Project Management, Inc.; BioMarin Pharmaceuticals, Inc.; Biovail Corporation; BrainCells Inc; Bristol-Myers Squibb; CeNeRx BioPharma, Inc; Cephalon, Inc.; Clinical Trials Solutions, LLC; CNS Response, Inc.; Compellis Pharmaceuticals; Cypress Pharmaceutical, Inc.; DOV Pharmaceuticals, Inc.; Eisai Inc.; Eli Lilly and Company; EPIX Pharmaceuticals, Inc.; Euthymics Bioscience, Inc.; Eli Lilly and Company; Fabre-Kramer Pharmaceuticals, Inc.; Forest Pharmaceuticals, Inc.; GlaxoSmithKline; Gruenthal GmbH; Janssen Pharmaceutica; Jazz Pharmaceuticals, Inc.; Johnson & Johnson Pharmaceutical Research & Development, LLC.; Knoll Pharmaceuticals Corp.; Labopharm Inc.; Lorex Pharmaceuticals; Lundbeck Inc.; MedAvante, Inc.; Merck & Co., Inc.; Methylation Sciences; Neuronetics, Inc.; Novartis AG; Nutrition 21; Organon Pharmaceuticals; PamLab, LLC.; Pfizer Inc.; Pharmavite LLC.; Precision Human Biolaboratory; Prexa Pharmaceuticals, Inc.; PsychoGenics; Psylin Neurosciences, Inc.; Ridge Diagnostics, Inc.; Roche; RCT Logic, LLC; Sanofi-Aventis US LLC.; Sepracor Inc.; Solvay Pharmaceuticals, Inc.; Somaxon Pharmaceuticals, Inc.; Somerset Pharmaceuticals, Inc.; Takeda Pharmaceutical Company Limited; Tetragenex Pharmaceuticals, Inc.; TransForm Pharmaceuticals, Inc.; Transcept Pharmaceuticals, Inc.; Vanda Pharmaceuticals, Inc.; and Wyeth Pharmaceutical.