Buprenorphine—used to treat opioid use disorder—is the only drug that ever came with federal limits on the number of patients a provider could care for. It also came with restrictions on the types of clinicians who could prescribe it. Rules requiring the so-called “x-waiver” for prescribing clinicians were ultimately repealed in December 2022. Since then, providers have been able to offer buprenorphine to any number of patients who need addiction treatment and a path to …
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