Literally, those drugs that can increase diuresis – namely the secreted daily urine volume – are classified as such. Most diuretics act directly on the nephron, through activation of specific transport proteins that are located on the epithelial cell membrane. Their role in lymphatic disorders is limited. They are mostly employed post-operatively – provided the patient’s pressure values allow it – as a mild stimulation to kidney function, and in order to control the daily hydroelectrolytic balance.