What characteristic defines controlled release medications?

Controlled release medications are specifically designed to release their active ingredient slowly and steadily over an extended period of time. This characteristic allows for a more consistent level of the medication in the bloodstream, which can enhance efficacy, improve patient compliance by reducing the number of doses needed throughout the day, and minimize potential side effects associated with peaks and troughs of medication levels.

This design contrasts with formulations that require multiple doses each day, which can result in fluctuations in drug levels. Controlled release medications are not limited to emergency use, as their purpose is to provide a stable therapeutic effect over time, rather than to address acute conditions. Additionally, while some medications may recommend being taken with food for various reasons, continuous release formulations do not exclusively have this requirement; it depends on the specific medication and its intended use.