the strength of the affect of these drugs is all dose dependent. google opiate/oid conversion chart. i mean technically you could take a dose of codeine thats stronger than a dose of heroin.
this should be pretty obvious but this seems like a rookie ish thread. check the mg of whatever you been taking. get the conversion chart, do the conversion and take a similar dose. ODs are not fun.
and ofcourse all the stuff you dont wanna hear. dont get hooked on these drugs. you will never be the same. i started blowing OCs, and picked up a habit and ran almost a year. had years clean after that. YEARS. neeedless to say im a full blown IV heroin junkie now after a relapse. i picked my life up. had a good job, a savings, paid my bills, etc etc etc. threw it all away because your brain never forgets the opiate high. the cravings are insane and your mind will rationalize anything, even yrs later. turn back now.