Final answer:
A medication that does not require a physician's service to obtain is referred to as nonprescription.
Step-by-step explanation:
A medication that does not require a physician's service to obtain is referred to as nonprescription. Nonprescription drugs, also known as over-the-counter (OTC) drugs, are medications that can be purchased without a prescription from a doctor. These drugs are deemed safe enough for use without medical supervision and are available for self-care purposes.