Injection (medicine)

An Injection (pronounced: /ɪnˈdʒɛkʃən/) is a method of delivering medications or other therapeutic agents into the body via a needle and syringe. The term originates from the Latin injectionem, meaning "a throwing in".

Types of Injections

There are several types of injections, each designed to deliver medication to specific depths of the skin. These include:

Intradermal Injection: This type of injection is given into the dermis, or the skin layer just below the epidermis.
Subcutaneous Injection: This injection is given into the subcutaneous tissue, which is the layer of fat located beneath the dermis.
Intramuscular Injection: This injection is given directly into the muscle tissue.
Intravenous Injection: This injection is given directly into a vein.

Uses

Injections are used to administer a variety of medications, including vaccines, hormones, antibiotics, and chemotherapy drugs. They are also used to administer nutritional supplements and other therapeutic agents.

Risks and Complications

While injections are generally safe, they can sometimes lead to complications such as infection, allergic reaction, and injury to nerves or blood vessels.

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Injection (medicine)