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The Dried Blood Spot (DBS) technique is getting a lot of attention and its advantages are now recognized in the bioanalytical, clinical and non clinical community. In preclinical drug development, DBS offers ethical benefits with regards to the ‘3Rs’ guiding principles: the reduced blood volume needed for DBS enables serial blood sampling from one animal rather than bleeds from several animals which significantly reduces the number of animals and improves the quality of the data for pharmacokinetic and toxicokinetic preclinical studies. Considering clinical applications, DBS offers the advantage of less invasive sampling like finger prick rather than by venous cannulation and the lower blood volume required is a great advantage in paediatrics too. Finally, DBS offers logistical and cost benefits including ease of sample handling, storage and shipment of the DBS cards at room temperature.
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