This medicine has been prescribed for you for the relief of severe pain over a period of 12 hours. It contains morphine which belongs to a class of medicines called opioids which are ‘pain relievers’. The medicine has been prescribed for you and should not be given to anyone else. Opioids can cause addiction and you may get withdrawal symptoms if you stop taking it suddenly. Your doctor should have explained how long you will be taking it for and when it is appropriate to stop how to do this safely.