I don't know what you heard from the others but definitely
codeine does you
more harm than good when you actually don't need it at all.
It's likely that you will develop depedence on the drug with chronic use and by that time, you will become a
drug addict.
Codeine brings you nothing but possibly deadly side effects in high dose:
Hypotension
Slow heart beat
Decreased in body temperature
Constricted pupils
Altered mental status
Respiratory depression
Constipation
Please stop experimenting your health with any drugs before it's too late. Numerous stories about how much patients suffering from withdrawal symptoms for opiates can be found in this forum, have a look at them and u can tell, that's
not worthwhile.