Physicians with a Drug Enforcement Administration (DEA) registration number may no longer be required to apply for a separate waiver to prescribe buprenorphine to patients with opioid use disorder (OUD), according to new practice guidelines by the Department of Health and Human Services (HHS). This waiver is referred to as X-waiver of the Controlled Substances Act (CSA). Physicians who dispense narcotic drugs to individuals for maintenance treatment or detoxification treatment[…]