Coke is usually what people call the HCL form of cocaine - the powder. it is what is snorted & injected. Crack is the hard little brownish/yellowish/whitish rock form - it is smoked.
It totally is not heroin - heroin is derived from opium poppies, and very concentrated. Never done it, but a sedative/painkiller type high from what I understand. Coke is the opposite, a stimulant.
Meth is not a derivative of heroin - heroin is instead obtained from lesser concentrated sources - sort of starts w/ opium poppie flowers -> resin collected and can be smoked; called opium -> opium is then purified into morphine -> morphine is then further purified into heroin.
Meth is methamphetamine, kind of similar to coke but effects can be more intense and longer lasting. also similarly to coke, meth can be in powder form (though not usually as white in color i think), or in rock form sometimes called Ice. Coke and Heroin come from "natural" sources, ie plants (not that this makes them healthy or anything, but they can have medical use). Meth is made from a couple of pretty toxic chemicals. I would not want to ingest any of its starting chemicals, the end product would likewise be pretty undesirable to me. this shit is the opposite of healthy in every stage of production. I would have to say meth is the most toxic out of these 3 drugs.
If you are going to do drugs, dont do this shit, stick with marijuana or mushrooms. Better yet, dont mess with any of them if you can help it.
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