Mental disorders are highly prevalent in the primary care setting, yet are frequently misdiagnosed and often inappropriately treated. The presence of unrecognized or misdiagnosed mental disorders is associated with increased service utilization and health care costs, and can significantly impact the patient's quality of life and risk of suicide. Written by experts from around the world, Mental Disorders in Primary Care offers readers with a comprehensive and evidence-based guide to the diagnosis and treatment of mental disorders in the primary care setting. Containing 21 chapters on a variety of psychiatric disorders, such as depressive disorders and substance use disorders, and key topics for discussion such as drug interactions, and collaborative care, Mental Disorders in Primary Care is essential reading for clinicians treating patients in a primary care setting. Fully up-to-date to reflect DSM-5's taxonomy of psychiatric disorders, this resource provides readers with a global and comprehensive guide to the diagnosis and treatment of patients with mental disorders.