It is a very broad and delicate issue, because the variety of drugs makes the classification of its qualities and disadvantages very tortuous, but the important thing that should be considered of a drug is the damage it can cause over time.

There is the certain foods because what are high in consumption and harmful over time, but at an economic level it is fruitful, so it is allowed to brew as acceptable to society, as in the case of refined sugar, then as far as a drug is considered good or bad for society to take it forbidden or legal, is when it touches the interests of a socio-economic group, coming to give an indifference to that evil in order to get the economic benefit necessary for their personal interests, resulting in some drugs being banned in the past are legal for the war on the black market to diminish nothing more with a legal adjustment where they notice the consequences of consumption, in other cases where it was in other times of legal consumption , ended up being banned by the immediate deterioration that people give to the envelope to pass the dose that the body can tolerate.

This is already a process of adaptation where the social response to this problem remains that changes over time depending on common interests.