Autoinjector

An autoinjector (or auto-injector) is a medical device for injection of a premeasured dose of a particular drug. Most autoinjectors are one-use, disposable, spring-loaded syringes (prefilled syringes). By design, autoinjectors are easy to use and are intended for self-administration by patients, administration by untrained personnel, or easy use by healthcare professionals; they can also overcome the hesitation associated with self-administration using a needle.^[1] The site of injection depends on the drug, but it typically is administered into the thigh or the buttocks.^{[citation needed]}

Autoinjectors are sharps waste.^{[citation needed]}