RecruitingPhase 1Drug trialEffect of Sublingual Formulation of Dexmedetomidine Hydrochloride (HCl) (BXCL501) - Outpatient StudyThe overall objective of the proposed study is to determine if Dexmedetomidine HCl (BXCL501) is safe for treatment of alcohol use disorder (AUD) with comorbid posttraumatic stress disorder (PTSD) in an outpatient setting and also shows potential signals of efficacy thereby supporting the conduct of later phase clinical trials.