Tag: Iv vs oral

By definition, an intravenous (IV) drug has 100% bioavailability, meaning the entire dose enters the bloodstream immediately. This is in stark contrast to oral medications, which must navigate the digestive system, leading to a significantly delayed onset of action. So, does IV work faster than oral? The clear answer is yes, due to the different pharmacokinetic pathways each route takes.

By pharmacological definition, the bioavailability of an intravenously administered drug is 100%, ensuring the entire dose enters the bloodstream immediately. This high level of bioavailability and speed of delivery fundamentally explains why is IV more effective than oral medications in many clinical situations, contrasting sharply with the absorption challenges of oral drugs.