This chapter discusses the major mental health disorders experienced by older adults, identifies the most effective counseling approaches and psychotropic medications used to address the mental health needs of older adults, and provides an overview of best practice counseling and treatment interventions used to address the mental health needs of older adults. In an overview of the literature regarding major depression and dysthymia, Zalaquett and Stens examined the effectiveness of four commonly used individual therapies for treating older adult depression: cognitive behavior therapy (CBT), interpersonal therapy (IPT), brief dynamic therapy (BDT), and reminiscence therapy (RT) and life review (LR) therapy. Counselors can develop brief checklists to assist clients in tracking their symptoms. Counselors should also educate themselves about the signs of excessive alcohol and substance abuse, noting that some medical conditions may have similar symptoms to drug or alcohol abuse.