What information is NOT mandatory on an inpatient labeling for a single-unit package?

On inpatient labeling for a single-unit package, the information that is not mandatory is the price of the drug. In a hospital or inpatient setting, the focus is primarily on safety, proper administration, and regulatory compliance rather than on the cost of the medications. Mandatory information typically includes the expiration date to ensure the drug's efficacy, the control number for tracking and quality assurance purposes, and the route of administration to clarify how the medication should be given to the patient. However, the price is not a requirement to be listed, as it is generally not relevant to the healthcare providers within that context.