All drugs are different and should be treated as such.
Some have a wide range of medical and therapeutic uses, some have none. Some have significant dangers and are addictive, some are not. The way they are manufactured varies as much as their effects. This guide to different substances aims to give clear concise information in 5 different categories; how it is produced, its legal status, whether it has any medical use, what the effects are, and how harmful it is.