Final answer:
Transfers of scheduled drugs can occur once between pharmacies without a shared database for Schedule II drugs, and up to once for Schedule III-V drugs, with proper documentation and recording.
Step-by-step explanation:
The transfer of scheduled drugs between pharmacies is highly regulated by the Drug Enforcement Administration (DEA). According to DEA regulations, the transfer of Schedule II drugs cannot occur without the pharmacies sharing a real-time, online database. Thus, such transfers can occur once; subsequent transfers would require shared databases to comply with the regulations to ensure proper tracking and prevent abuse or diversion of controlled substances. However, for Schedule III-V drugs, transfers can occur up to a maximum of once if the pharmacies do not share an online database, under the condition that certain documentation is provided and the transfer is recorded properly by both the transferring and the receiving pharmacy.