Intravenous medications are drugs delivered directly into a patient's bloodstream through a vein. This method allows for rapid absorption and immediate effects, making it useful in emergencies or for patients who cannot take medications orally. The administration of intravenous medications typically involves the use of a IV catheter or IV line, which is inserted into a vein. Healthcare professionals monitor the patient closely to ensure proper dosage and to watch for any potential side effects or complications during the infusion process.