'If I was going to be addicted to any drug--it would probally be Opioids? It does the least damage.'
I'll always remember that statement, but I think he meant in a perfect world(where you could get legal, pharmaceutical grade product)? The addicts, I know, have so many ancillary diseases, and health problems--I don't think I would ever try it--even once. (I imagine the health problems are due to dirty needles, and unknown handling, and "cutting" of the drug?)
1) they've recently tried to quit and thus have a lower threshold.
2) they've somehow got much purer product than they're used to.
http://www.bbc.co.uk/news/uk-england-nottinghamshire-3312699...
Heroin for addicts could be much safer than it is now.
http://www.sciencelab.com/msds.php?msdsId=9926585 - caffeine Toxicological Data on Ingredients: Piracetam: ORAL (LD50): Acute: 2000 mg/kg [Mouse].
http://www.sciencelab.com/msds.php?msdsId=9927475 - Piracetam Caffeine LD50 Acute: 192 mg/kg [Rat]. 127 mg/kg [Mouse]. 224 mg/kg [ Rabbit].
Presuming human equivalence to mice - A 185 pound person would need to ingest about 168 grams of piracetam as compared to around 10 grams of caffeine.
But - it's really important to note that both are toxic to the point of being fatal in easily digestible, relatively small amounts. Caffeine, in particular, can creep up on you pretty quickly - penguin mints are 1/2 gram per tin. (75 * 7 mg/mint).
Besides, it seems wider than just China and its descendants.
The problems with heroin are usually in conjunction with alcohol or other depressants, people using too much, throwing up, and then drowning on their own vomit, not having a clean rig, or, god forbid, sharing needles.. And, of course, using too much, and then dying from the toxicity.
The toxicity thing typically comes from the legal element - people don't know how pure a component they are using; also they do it alone with nobody around to help them when they get into trouble. If they did know the purity, and their tolerance, and shot up in a safe, clean and social manner - overdose deaths for existing users drop to zero if there is someone around to revive a person who is ODing. http://www.theglobeandmail.com/life/health-and-fitness/vanco...
But coming back to my main point - we can't have reasonable conversations about this, because "oooh, Heroin, Crack, Cocaine - scary evil monsters" - and all rational discourse goes out the window. If you brought this into the public light, then when people meet heroin addicts, become familiar with their situation, and realized what a stupid and possibly expensive addiction it is - you treat it like a disease and have zero interest in touching the stuff.
I will note, that I know an ex-heroin user who also quit smoking, and he said kicking the smoking habit was 10x harder than heroin.