What dosage form typically receives a prescription number of 6?

The correct response highlights that prescription numbers are typically assigned to legend drugs, which require a prescription to be dispensed. These drugs are regulated by the FDA and usually include prescription medications that are considered safe and effective when used under a healthcare provider's guidance.

When it comes to prescription numbers, controlled substances, although also requiring prescriptions, which may include specific numbering systems for scheduling, do not uniformly correspond to the same numeric format as legend drugs. Over-the-counter drugs are available without a prescription, and supplements are not classified as drugs under FDA regulations, so they don't fall under the prescription numbering system at all. Therefore, the prescription numbering scheme is primarily applicable to legend drugs, reinforcing their status as medications that mandate professional oversight for safety and efficacy.