Evaluation of state schedule II controlled substance laws

Background: States have the authority to mandate laws that are more stringent than federal law, which often results in important differences in prescribing and dispensing patterns throughout the country. Objective: To evaluate schedule II controlled substance laws in all 50 states, the District of Columbia, and Puerto Rico to identify important differences. Methods: The current state laws and regulations regarding controlled substances were evaluated using the following criteria: whether prescription expirations dates are mandated, whether partial fills are permitted, whether changes can be made to prescriptions after consulting with a physician, whether maximum days' supplies are mandated, and whether pharmacists can dispense emergency oral prescriptions. Results: Thirty-nine states and Puerto Rico (77%) mandate prescription expiration dates. Partial filling is permitted in all states, the District of Columbia, and Puerto Rico (100%). All 50 states and the District of Columbia (98%) permit pharmacists to make prescription changes after consulting with the physician. Nine states (17%) have mandated maximum days' supplies that a physician may prescribe. All 50 states, the District of Columbia, and Puerto Rico (100%) permit pharmacists to dispense drugs in an emergency situation with verbal prescription. Conclusions: Pharmacists should be aware that differences exist among the states, the District of Columbia, and Puerto Rico regarding Schedule II controlled substance laws. Understanding these differences is fundamental to the profession.