Intravenous administration cuts off any barriers to absorption. Drugs are delivered straight to organs and this makes it quite dangerous and only used in very urgent cases where patients are unable to swallow, too young, unconscious or vomiting consistently.
Intravenous is a method of administering concentrated medications (diluted or undiluted) directly into the vein using a syringe through a needle less port on an existing IV line or a saline lock.
Administering a medication intravenously eliminates the process of drug absorption and breakdown by directly depositing it into the blood. This results in the immediate elevation of serum levels and high concentration in vital organs, such as the heart, brain, and kidneys.
