RecruitingPhase 1Drug trialA Study to Evaluate the Effects of CYP2D6 Phenotypes on the Pharmacokinetics of Xanomeline Following KarXT Administration in Healthy Adult ParticipantsThe purpose of this study is to evaluate the pharmacokinetics (PK) of xanomeline following administration of KarXT in CYP2D6 normal/extensive, intermediate, poor, and ultrarapid metabolizers.