<unk> , also known as interstitial infusion or hypodermoclysis, is a form of<unk>  (under the skin) administration of fluids to the body, often saline or glucose solutions. It is the infusion counterpart of<unk>  injection with a syringe.<unk>  can be used where a slow rate of fluid uptake is required compared to intravenous infusion. Typically, it is limited to 1 ml per minute, although it is possible to increase this by using two sites simultaneously. The chief advantages of<unk>  over intravenous infusion is that it is cheap and can be administered by non-medical personnel with minimal supervision. It is therefore particularly suitable for home care. The enzyme hyaluronidase can be added to the fluid to improve absorption during the infusion.
Subcutaneous infusion
Subcutaneous injection
Intramuscular injection
Transdermal spray
Intraosseous infusion
Intraperitoneal injection
Oral administration
Nasal administration