Hi, I have 30/500 effervescent solpadol and would like to remove as much of the paracetamol as possible so I can get better pain control with extra codeine. I have read that the paracetamol in effervescent tabs is soluble but isn't the paracetamol in regular tablets soluble aswell? Hence the reason for cooling to bring the paracetamol back to a solid, wouldn't this be true for effervescent also? Another question, is there a way to reduce the sodium content of the effervescent solpadol? I noticed when the effervescent tabs are dissolved there is a 'sludge' at the bottom of the glass if it is left standing for a few minutes, any ideas what this will be? Would it be worthwhile filtering it out? Questions questions!! Cheers .