RecruitingPhase 3Drug trialA Pilot Study to Evaluate Barhemsys for the Prevention of Postoperative Nausea And Vomiting in the Bariatric Surgery PopulationTo assess the effectiveness of Amisulpride to treat Post Operative Nausea and Vomiting (PONV) and to assess the effectiveness of Amisulpride to prevent PONV following bariatric surgery.