Autoinjector

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Autoinjector (pronounced: aw-toh-in-jek-tor) is a medical device designed to deliver a single dose of a particular drug, most commonly, life-saving drugs.

Etymology

The term "autoinjector" is derived from the prefix "auto-", meaning self, and "injector", referring to a device that administers a substance into the body.

Definition

An Autoinjector is a device that automatically injects a dose of medication when activated. It is typically a spring-loaded syringe designed for ease of use and to overcome a patient's reluctance to self-administer a needle-based drug.

Usage

Autoinjectors are commonly used to self-administer epinephrine in cases of severe allergic reactions, or insulin for diabetes management. They are also used in the military to administer antidotes for nerve gas exposure.

Types of Autoinjectors

There are two main types of autoinjectors: prefilled and reusable. Prefilled autoinjectors come with a pre-measured dose of medication, while reusable autoinjectors can be loaded with a drug cartridge.

Advantages

The main advantage of an autoinjector is its ease of use, which can be critical in emergency situations. It also reduces the risk of needle-stick injuries and ensures accurate dosing.

Related Terms

  • Epinephrine - A hormone and medication used to treat severe allergic reactions.
  • Insulin - A hormone produced by the pancreas that regulates the amount of glucose in the blood.
  • Prefilled autoinjectors - Autoinjectors that come with a pre-measured dose of medication.
  • Reusable autoinjectors - Autoinjectors that can be loaded with a drug cartridge.

External links

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