Under what circumstance can samples of prescription drugs be given to patients?

The correct answer highlights that only a prescriber has the authority to give samples of prescription drugs to patients. This practice is tied to regulations that govern the distribution of prescription medications, which are designed to ensure patient safety and appropriate use of medication.

When prescribers provide samples, it typically occurs in a clinical setting where the prescriber can evaluate the patient's condition and determine that a specific medication may be beneficial for them. This one-on-one interaction allows the prescriber to inform the patient about the medication's use, side effects, and other critical information that supports the patient's well-being.

In contrast, pharmacists, although essential in the medication dispensing process, are not authorized to supply prescription samples without a prescriber's order. Pharmacies do have policies governing the use of samples, but giving them out is limited to prescribers who can assess the patient's needs directly.

Additionally, while promotional events may involve medication samples, they do not typically allow for the distribution to individual patients without the oversight or involvement of a prescriber, further differentiating this option. Ultimately, the guidelines are designed to ensure that patients receive medications in a responsible and informed manner.