A Phase IV, Open-label, Single-group Study Evaluating KarXT Concentrations in the Breast Milk and Plasma of Healthy Lactating Female Participants

Inclusion Criteria: * Participants should have a body mass index (BMI) of 18.0 kg/m2 to 35.0 kg/m2, inclusive, and body weight ≥ 50 kg (110 lb), at screening. * Participants should have well-established lactation (ie, at least 4 weeks postpartum) and can produce stable milk product (ie, approximately 3 oz per 3 hours at screening) using the methods required for the study. * Participants should be willing to exclusively pump breast milk throughout the treatment period and during the 24-hour post last dose period of milk collection during the CRU domincile period. * Participants should agree no…