What does XL stand for in medication terminology?

In medication terminology, XL stands for "Extended Release." This designation indicates a formulation that is designed to release the active ingredient over an extended period, providing a sustained therapeutic effect rather than a quick release that would lead to peak and trough levels in the bloodstream. Extended release formulations are advantageous as they can reduce the frequency of dosing, enhance patient compliance, and maintain more consistent drug levels in the body.

The other terminology options provided do not accurately reflect the meaning of XL in this context. For instance, "Extended line," "Extreme low," and "Extra light" do not pertain to any recognized medical or pharmaceutical terminology related to drug formulations. Thus, understanding that XL signifies an extended release is crucial for recognizing how certain medications are designed to work in the body over time.