Since, as a rule, people do not use drugs for medical purposes, it will be absolutely right to say that they like the sensations given by drugs. A very important question arises: what forms such sensations? Part of the answer lies in the chemical action of drugs, but this is not the only reason. Not so long ago, chemical action was called the main factor influencing the character of sensations. But studies of the past 30 years in the field of pharmacology, psychology and sociology have shown that these sensations are not the product of the pharmacological action of chemicals.

In order to better understand the nature of the sensations caused by drugs, we have divided all factors, pharmacological and non-pharmacological, into three groups. The first group consists of pharmacological factors. The first factor is the chemical properties and effects on the body of the drug. The next is his dose, that is, the amount of the substance consumed. The third pharmacological factor is the way of taking the drug, the way in which it enters the body. This is important because it depends on the method of administration which part of the dose reaches the organ affected by the drug and how quickly it will occur.
In Chapter 4, we will look at how to take drugs in detail and how sensations arise from this.
The second group of factors – non-pharmacological.

It consists of the characteristics of the person taking the drug, such as the genetic structure of the organism (inherited biological properties of the organism, which determine the response to the use of various drugs), gender, age, drug abuse tolerance and individuality. An important part of individuality is a psychological series, which includes knowledge, attitudes towards drugs, expectations and thoughts about them. For example, sometimes a firm belief that drugs must produce a certain effect is enough for an effect to take place, although a person has taken some inactive chemical (in pharmacology this is called a harmless medicine prescribed to calm the patient).

The third and last group, which also includes non-pharmacological factors, are circumstances in which the drug is taken. They come in different planes and include the environment, the laws of a given society, prohibiting the use of drugs and the presence or absence of other people at the time of taking the drugs.
All these three groups of factors influence the nature of sensations experienced while taking drugs. Tracing this influence is often very difficult. Still, many people try to do this. The knowledge gained by their efforts forms the basis of this blog.