Read through all of this leaflet thoroughly before you start having this medicine as it contains critical information to suit your needs. Codeine is transformed to morphine while in the liver by an enzyme. Morphine is the material that makes pain reduction. Some folks have a variation of this enzyme https://co-codamol30500mg22111.targetblogs.com/36195257/5-simple-techniques-for-co-codamol-30-500-constipation