What is a defining characteristic of a prescription drug?

A defining characteristic of a prescription drug is that it is labeled to indicate restrictions on dispensing. This labeling serves as an essential factor that distinguishes prescription medications from over-the-counter (OTC) drugs. Prescription drugs typically require authorization from a healthcare professional, which ensures that the patient receives the necessary supervision and guidance regarding their use. This helps to mitigate potential risks associated with misuse or adverse effects.

The labeling not only indicates that a drug should only be dispensed upon a valid prescription but may also include information on dosage, duration of therapy, potential side effects, and precautions, ensuring that patients are well-informed. This level of regulation plays a vital role in safeguarding public health by ensuring that these medications are used appropriately and monitored by healthcare providers.