Therapeutic Drug Monitoring by HPLC and LC-MS
Therapeutic drug monitoring (TDM) helps clinicians optimize dosing for medicines with narrow therapeutic windows. This article explains how accurate calibration and stable reference materials support reliable TDM workflows.
Therapeutic drug monitoring, or TDM, helps clinicians optimize dosing for medicines that have narrow therapeutic windows or large patient-to-patient variability. Common examples include antiepileptics, immunosuppressants, certain antibiotics, and cardiovascular drugs. From the analytical perspective, TDM depends on accurate calibration and stable reference materials. Laboratories may measure parent drugs alone or include key metabolites, depending on the medical use case and the instrumentation available. In either setup, unsuitable standards can weaken result comparability and undermine clinical confidence. Original content on this topic should emphasize workflow practicality. Clinical and contract laboratories need standards that are easy to source, clearly documented, and compatible with the method format they already use. They also benefit from predictable packaging and restocking cycles. This makes TDM a promising category for distributors interested in reference standards with recurring demand. Because the applications are medically relevant and operationally repetitive, buyers often value reliability over novelty. Explore Related Products For the workflows discussed in this guide, browse ROWELL's HPLC column catalog to compare stationary phases, dimensions, and manufacturer options.