What are OTC medications?

OTC medications refer to drugs that can be purchased without a pharmacist's prescription, which is accurately described in the correct choice. These medications are generally considered safe and effective for use by the general public without needing direct supervision by a healthcare provider. This availability allows individuals to manage minor health issues such as headaches, colds, and allergies on their own, promoting accessibility and convenience in healthcare.

The other options do not accurately represent the nature of OTC medications. Prescription-only drugs require a healthcare provider's prescription, thus limiting access. Medications administered by healthcare professionals are typically classified as either prescription medications or treatments that require professional oversight, which differs from the self-administration aspect of OTC drugs. Lastly, the notion that OTC medications are always free is incorrect, as these products are available for purchase, though prices may vary based on the brand and location.