Fig. 1From: Barriers to management of opioid withdrawal in hospitals in England: a document analysis of hospital policies on the management of substance dependenceThe categorisation of analgesics, including opioid analgesics, in the 2010 Omitted and Delayed Medicines Tool, produced by the Specialist Pharmacy Service to inform the NHS critical medicine categorisation. Here, opioid analgesics for severe chronic pain and breakthrough pain are categorised as ‘high risk’ if delayed or omittedBack to article page