I can talk about this now without getting too upset. When my darling wife was very ill & in pain I discussed with the Doc a painkilling regime to keep her more comfortable.
As you are aware you can take 2 Paracetamol 4 times in any 24 hrs, this means 2 tabs every 6 hours ( NOT 4 hours as some people think ) , she was constantly in pain & so the Doc suggested that 3 hours after taking her Paracetamol she could take 2 Codeine tabs, then 3 hours later it was ok to have 2 Paracetamol, & then repeat.This kept her pain under reasonable control, until of course she had to eventually be given Morphine until she died 2 years ago.I am telling you all this in the hope that the Paracetamol - Codeine regime can help some other poor soul. ( Because of the Paracetamol content, Co-Codamol could only be taken 4 times daily ). Ron.