Provided are novel pyrimidine dione compounds and pharmaceutically acceptable salts thereof, that are useful for the treatment of hypertrophic cardiomyopathy and conditions associated with left ventricular hypertrophy or diastolic dysfunction. The latch assembly is dimensioned for integration with an opening in an door frame. A method for dispensing medication is provided, comprising the steps of locating a medication dispenser at a point-of-care, acquiring user input from a user at the point-of-care, comparing the user input to a database, selecting, responsive to the comparing, an appropriate dose from the one or more doses, and permitting access through the access device to the appropriate dose.