Inpatient PRN Overuse

PRNs (from the Latin pro re nata: for an occasion that has arisen) are a typical prescribing practice in most in-patient psychiatric units. There is limited evidence for the clinical effectiveness of as needed medications.[1][2][3] The overuse of psychotropic PRNs could potentially expose patients to unnecessary psychotropic medications and or confound the response to treatment with other psychotropics.[4]