Pharmacotherapy for Complex Substance Use DisordersIn 2020, the National Survey on Drug Use and Health estimated that 40. 3 million Americans met the criteria for a substance use disorder (SUD) in the past year. Yet few FDAapproved treatments exist for SUDsand no explicit treatment guidelines. When it comes to multiSUDs, the dearth of literature is notable. This is where Pharmacotherapy for Complex Substance Use Disorders: A Practical Guide comes in. Fifteen addiction psychiatrists have contributed to