Drug injection - Wikipedia - Hypodermic bottom injection
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A hypodermic needle one of a category of medical tools which enter the skin, called sharps, is a There are many possible routes for an injection, with the arm being a common location. . and or gauge needles are most commonly used for blood donation, as the resulting lower pressure is less harmful to red blood. Drug injection is a method of introducing a drug into the bloodstream via a hollow hypodermic in a powder or crystal form—is dissolved in water, normally in a spoon, tin, bottle cap, the bottom of a soda can, or another metal container.