Drug removal in continuous haemofiltration and haemodialysis.

Although both continuous haemofiltration and continuous haemodialysis are techniques routinely employed in the management of critically ill patients, deciding on a drug dosing regimen is often difficult. This article highlights the factors influencing drug removal by both processes, the difficulties associated with the interpretation of research in this area and offers a number of approaches which can be used when selecting a dosing regimen for a patient receiving one of these therapies.