Which of the following types of medications does NOT require a doctor's order?

Topical medications generally do not require a doctor's order because they often include over-the-counter products that can be used for a variety of common conditions such as minor skin irritations, cuts, or sunburns. These medications can be safely used by individuals without a prescription, as they are designed for easy access and self-administration.

In contrast, prescription medications are regulated drugs that need a physician's evaluation to ensure their appropriateness for the patient's condition. Controlled substances are particularly restricted medications that require stringent prescribing due to their potential for abuse and dependence. Injectable medications typically fall into either prescription or controlled categories and usually need a physician's order to administer safely and effectively.