With the aim of having harmonised texts within the European Economic Area, the Co-ordination Group for Mutual Recognition and Decentralised Procedures-Human (CMDh) had agreed on a proposed text to be included for benzodiazepines and benzodiazepine like products (i.e. z-drugs), with regards to the warnings for concomitant use with opioids. A corresponding text for opioids was also agreed.