In parenteral administration, the drug is injected (injection solution) directly into the inside of the body. This type of application avoids the disadvantages of oral administration, but requires a sterile injection technique. The following injection types are used:A. Bypassing resorption: * Intravenous supply (i.v.), * Intraarterial supply (i.a.), * Intracardial supply (directly into the heart), * Intraspinal supply (directly into the spinal cord canal), * Intralumbar supply (directly into the subarachnoid space).B. With activation of resorption: * Intramuscular supply (i.m.), * Intracutaneous supply (i.c.), * Subcutaneous supply (s.c.), * Percutaneous supply (p.c.), * Intraperitoneal supply (i.p.).