Which type of drug is only available with a prescription?

Legend drugs are specifically classified as prescription medications due to their potential for misuse, side effects, and the need for medical supervision during use. These drugs require a healthcare provider's evaluation to ensure they are appropriate for the patient's specific condition and safe for their use. The prescription requirement is a safety measure to prevent patients from self-medicating with potentially harmful substances without professional oversight.

In contrast, over-the-counter medications are available for purchase without a prescription and are typically considered safe for general use by the public. Homeopathic remedies are also often available without a prescription and are based on alternative medicine principles. Herbal products usually fall into a similar category where they can be obtained without a prescription, although some may interact with medications or have side effects that should be discussed with a healthcare professional.

This clarity of prescription requirements helps to ensure that patients receive appropriate monitoring and guidance for medications that could have significant effects on their health.