What does 'sustained release' imply in terms of drug dosage?

'Sustained release' implies that the drug is released into the bloodstream at a controlled rate over an extended period, leading to a continuous therapeutic effect. This formulation allows for a more stable and prolonged release of the active ingredient, minimizing peaks and troughs in drug concentration that can occur with immediate release forms.

The primary advantage of sustained release formulations is to maintain effective drug levels in the body without the need for frequent dosing, enhancing patient compliance. Additionally, this controlled release can help in reducing the frequency of side effects that are often associated with rapid absorption and higher peak concentrations. By achieving a steady state of medication, sustained release can significantly improve the overall management of chronic conditions or ongoing therapies.

In contrast, options that refer to immediate absorption or increased dosing frequency do not align with the concept of sustained release, which aims specifically to extend the effect of the medication while minimizing the peaks in drug levels.