Which of the following is NOT a route by which pharmacists may administer drugs?

The correct choice indicates the route that pharmacists typically do not administer. While oral administration is a common method for delivering medications, it is primarily self-administered by patients rather than administered by healthcare professionals. Pharmacists are not usually involved in the oral administration of medications to patients directly.

In contrast, intravenous, intradermal, and subcutaneous routes are methods of administration that require direct involvement from a healthcare professional. These routes involve the use of syringes or other medical equipment and often require specific training and credentials to ensure safe and effective delivery of drugs. As such, while pharmacists play crucial roles in medication management and patient education, their training in providing oral medications typically does not extend to administering them directly to patients.