The world's three most traditional drugs are cocaine, marijuana and heroin.
Marijuana, which was first derived from the extract of the cannabis plant and hence the name, has a very complex composition consisting mainly of lipoids, flavonoids, terpenes, hydrocarbons, non-cyclic macro-phenols, alkaloids, silver citrate and cyclic cannabinol.
Cocaine, also known as cocaine, is chemically known as phenylmethylbudine, mostly in the form of white crystals, odorless, with a bitter and numbing taste. In medicine, it is used as a local anesthetic or vasoconstrictor.
Heroin, series of morphine drugs in general, is the morphine alkaloids as the starting point for the synthesis of semi-synthetic drugs obtained, commonly known as a few, white powder, white flour. It is the refined product in the opioid drug series.
Expanded:
p>Drugs are a serious danger to individuals, families and society.
One, drugs are harmful to individuals. Drugs act on the human body, will make the human body to produce adaptive changes, the formation of a new state of equilibrium under the action of drugs, once the drug is discontinued, physiological functions will be disorganized, a series of serious reactions, known as the withdrawal reaction, so that people feel very painful.
The second harm to the family. Drug addicts in the self-destruction at the same time also destroyed their own families, so that the family into economic bankruptcy, relatives separated and even the family broke the difficult place.
Three, the great damage to social productivity. Drug addicts firstly lead to physical diseases affecting production, and secondly cause great loss and waste of social wealth. At the same time drug activities also cause environmental degradation, shrinking the living space of human beings.
Baidu Encyclopedia-Drugs