3D animation of a<unk>  A<unk>  is administered as a bolus into the subcutis, the layer of skin directly below the dermis and epidermis, collectively referred to as the cutis. The instruments are usually a hypodermic needle and a syringe.<unk> s are highly effective in administering medications such as insulin, morphine, diacetylmorphine and goserelin. Subcutaneous administration may be abbreviated as<unk> , SQ, sub-cu, sub-Q, SubQ, or subcut. Subcut is the preferred abbreviation to reduce the risk of misunderstanding and potential errors. Subcutaneous tissue has few blood vessels and so drugs injected here are for slow, sustained rates of absorption, often with some amount of depot effect. Compared with other routes of administration, it is slower than intramuscular injections but still faster than intradermal injections. Subcutaneous infusion (as opposed to<unk>  is similar but involves a continuous drip from a bag and line, as opposed to injection with a syringe.
Subcutaneous injection
Subcutaneous infusion
Intramuscular injection
Intradermal injection
Transdermal spray
Intraperitoneal injection
Oral administration
Subcutaneous implant