What must be documented if a controlled substance is returned to a pharmacy?

When a controlled substance is returned to a pharmacy, it is crucial to document the reason for the return and maintain an appropriate chain of custody. This documentation ensures compliance with federal and state regulations surrounding the handling of controlled substances, which are subject to strict regulations due to their potential for abuse and misuse.

Recording the reason for the return helps to maintain transparency and accountability in the handling of these substances. It provides a clear rationale for the return, which can be important for both legal and regulatory purposes. Additionally, documenting the chain of custody is essential in demonstrating that the controlled substance has been properly tracked and accounted for, thereby helping to prevent diversion and ensuring the safety of the medication supply.

The other options don't encompass the full requirements set forth by regulatory authorities. Simply documenting the date of return or the name of the person returning the substance does not provide sufficient information to ensure compliance with all necessary regulations. Moreover, the belief that returns are unregulated is incorrect, as controlled substances are always subject to regulatory oversight.