What method of substance administration is characterized by being swallowed or taken through the mouth?

The method of substance administration that is characterized by being swallowed or taken through the mouth is referred to as "oral." This method involves ingesting a substance, allowing it to be absorbed through the digestive system. Oral administration is commonly used for various medications and drugs, making it one of the most prevalent and convenient methods for delivering substances.

In contrast, inhalation involves breathing a substance into the lungs, where it can quickly enter the bloodstream. Injected substances are introduced directly into the body through a needle, bypassing the digestive system entirely. Snorting refers to the method of taking a substance through the nasal cavity, where it can be absorbed by the mucous membranes. Each of these methods has different absorption rates, onset times, and effects on the body, with oral administration typically providing a slower and more gradual release of the substance compared to the other routes.