Serum Concentration

Serum concentration refers to the amount of a drug, substance, or chemical present in the bloodstream at a given time. It reflects how much of the substance is circulating in your blood, which helps determine its effectiveness and safety. Monitoring serum levels ensures that a drug remains within a therapeutic range—high enough to be effective but not so high that it causes adverse effects. This measurement is important for customizing treatment, adjusting dosages, and maintaining optimal health outcomes.