Many drugs can be administered in a variety of ways rather than just one. Which of the following methods of drug administration is commonly referred to as a drip?

Intravenous therapy or IV therapy is the giving of substances directly into a vein. Therapies administered intravenously are often called specialty pharmaceuticals. It is commonly referred to as a drip because many systems of administration employ a drip chamber, which prevents air entering the blood stream (air embolism) and allows an estimate of flow rate.