Final answer:
The route of administration for a drug placed between the cheek and gums is buccal, which allows direct absorption into the bloodstream and is convenient for home use. Oral administration is generally preferred for home treatment of systemic infections unless a drug requires stronger or quicker plasma levels, in which case parenteral routes like intravenous administration are used.
Step-by-step explanation:
The route of administration for a drug placed between the cheek and gums is known as buccal. This method entails placing the drug in the mouth between the gum and the inner lining of the cheek, providing a way for the drug to be directly absorbed into the bloodstream. This route is convenient and avoids the gastrointestinal tract, which may not absorb some drugs effectively or could lead to decontamination if the drug treats intestinal issues.
When considering a convenient method for home administration of an antimicrobial to treat a systemic infection, the oral route is typically preferred. It allows the patient to easily take medication without professional assistance. However, when a drug is not absorbed well in the GI tract, or higher plasma levels are required quickly, parenteral routes such as intravenous administration are preferred, typically in a healthcare setting.