Under what condition does the DEA allow the return of controlled substances to the pharmacy?

The DEA allows the return of controlled substances to the pharmacy primarily in the case of errors. This provision is in place to ensure that controlled substances are managed safely and appropriately within the pharmacy setting. If a pharmacy dispenses a medication in error—whether it's the wrong medication or the wrong dosage—it is crucial for the pharmacy to have a procedure to return that medication. The process ensures that the medication is accounted for properly and that it does not endanger patients if it were to remain in circulation.

This approach helps maintain the integrity of the controlled substances inventory and supports compliance with regulatory standards set by the DEA. While there may be other circumstances under which controlled substances could be handled or disposed of, the specific allowance for returns is primarily tied to dispensing errors, ensuring that patient safety is prioritized.