Final answer:
The supplier or manufacturer is responsible for reporting in-transit losses of controlled substances between the supplier and pharmacy.
Step-by-step explanation:
The responsibility for reporting "in-transit" losses of controlled substances between the supplier and pharmacy falls on the supplier or manufacturer of the controlled substances. It is the supplier's duty to track and report any losses or discrepancies in the transportation of these substances.
For example, if a controlled substance shipment is lost or stolen during transit, it is the supplier's responsibility to report the incident to the appropriate authorities, such as the Drug Enforcement Administration (DEA) or the local law enforcement agency. They should also inform the receiving pharmacy about the loss or theft.
Overall, the supplier or manufacturer is responsible for maintaining the security and integrity of controlled substance shipments during transportation, and they must report any in-transit losses promptly.