Just to stop you there heroin was not used until morphine was invented.morphine was discovered first.you have to have morphine to make heroin.it's the same drug it just metabolized faster as heroin,which after crossing blood brain barrier turns right back to heroin.heroin is only morphine processed with acetic acid.diacylmorphine is chem name of heroin.heroin (pure) has been shown to cause no damage to body or brain tissue.it's only not medically used in USA because of addictive properties and stigmata from govt past.now they make oxymorphone which is same shit.so don't compare our greatest accomplishment by the Bayer pharmaceutical company heroin to spice.by way bayer 2nd wonder drug invented was aspirin.which kills liver more than any other drug dam near.
I now know this, jeez this thread is 3 years old lol
Thing that I've learned sucks about the dope is it does not last very long, and it's not effective orally, hardly.
Same with the -morphones
Comparing dope or morphine to spice though. From what I remember, when I smoked way too much of that stuff was that when you held a hit of spice in, it clinched your muscles, immediately released them and left you in a state of bliss. Honestly pretty damn similar to the feeling of IV hydromorphone or heroin. That quality though, I believe, didn't come until after I was hooked on it.