What is the purpose of an intramuscular injection?

An intramuscular injection is specifically designed to administer medication directly into the muscles. This route allows for a faster absorption rate compared to subcutaneous injections, as muscles have a greater blood supply. The intramuscular route is often used for vaccines and medications that require rapid action or larger volumes that cannot be injected subcutaneously.

The correct choice highlights the distinctive feature of this method: it delivers the medication effectively into the muscle tissue, ensuring that it can be absorbed promptly into the bloodstream for therapeutic effects.