For how long must records pertaining to cancer drug repository programs be maintained?

The correct answer is 5 years because, according to Minnesota state law regulations, records related to cancer drug repository programs must be retained for a minimum of 5 years. This time frame ensures that adequate documentation is available for review and compliance purposes, which is crucial for tracking the dispensing and usage of cancer drugs, especially given the regulations surrounding donated medications and patient safety. Maintaining these records for a specified period allows the state to monitor the program's effectiveness and ensure that the drugs are distributed and used appropriately, adhering to the established guidelines.