What is the method of delivering medication directly into the body via injection called?

The method of delivering medication directly into the body via injection is called the parenteral route. This approach allows for medications to be administered directly into the bloodstream or into tissues, bypassing the gastrointestinal tract.

The parenteral route is particularly effective when a rapid onset of action is required or when a patient is unable to take medications orally due to various conditions, such as nausea or unconsciousness. Common forms of parenteral administration include intramuscular, intravenous, and subcutaneous injections, all of which ensure that the medication rapidly circulates through the body.

In contrast, the oral route involves administering medications through the mouth, where they must pass through the digestive system before entering the bloodstream. The topical route involves applying medication directly to the skin or mucous membranes for localized treatment. The inhalation route delivers medication through the respiratory system, usually targeting the lungs for conditions like asthma or COPD. Each of these routes is useful in specific contexts, but when considering direct injection, the parenteral route is the appropriate term.