In medicine, drugs are used through many different routes such as oral, injection, infusion, topical application, .... of which the most common are still oral and injection. Almost all patients can take medicine by themselves, but injections must mostly be performed by medical staff.

Intramuscular injection is a basic nursing technique applied to prescribed medications. When performing intramuscular injection, it is necessary to clearly understand the technical procedures, injection sites, and monitor for possible complications during the injection process.