Intravenous (IV) fluid drips deliver saline solution through a small catheter and tubing directly into the bloodstream. This solution usually includes medications and vitamin supplements that are tailored to the individual patient. During therapy, the nurse inserts an IV line which is attached to a bag of saline solution. The bag is then hung above the patient’s head. IV therapy bags are designed to let gravity, as opposed to a syringe or other forced technique, carry fluid into the veins over time. The duration of a single treatment varies from person to person but typically lasts 45 minutes – 1 hour.