Which of the following statements is true about the purchase of medications in a pharmacy?

The statement regarding controlled medications being processed only by licensed personnel is true because the sale of controlled substances is subject to stringent regulations to prevent misuse and ensure patient safety. Federal and state laws dictate that licensed professionals, such as pharmacists or pharmacy interns under the supervision of a pharmacist, handle the sale and distribution of controlled substances. This is necessary to ensure that appropriate measures are taken to verify prescriptions, maintain records, and monitor for potential misuse.

In contrast, while other medications may be sold by less regulated staff, controlled substances require a higher level of oversight due to their potential for abuse and the legal implications tied to their distribution. The requirement for licensed personnel helps uphold the integrity of the pharmacy practice and protects public health.