The clinical presentations of autoimmune encephalitides tend to be a mixture of neuropsychiatric and somatic symptoms. The focus of this chapter concerns these clinical problems: the clinical phenomenology, the prevalence, and the possible pathophysiologies of anti-NMDAR or the other types of autoimmune encephalitis. We also specifically address the psychopharmacologic and nonpsychopharmacologic treatments. Our main questions are: What are the most used and best justified drug treatments? What are the most frequent side effects? And which other treatment options, such as ECT, are available? We discuss the main findings, present limitations, and we conclude by giving recommendations and presenting two algorithms.