The practice of Evidence-based medicine requires the integration of individual clinical expertise with the best available external clinical evidence from systematic research, involving the use of randomized controlled trials (RCT) and double-blind techniques. This is the first book of its kind to bring together the reviews of these trials, examining the evidence for particular drug interventions commonly used in pain relief. With outstanding sales of the hardback, this new low-priced paperback edition should become the standard reference text for those involved in the provision of pain relief, from Anaesthesiology to Palliative care.