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Psychoactive substances: what are they and how are they classified?

Psychoactive substances: what are they and how are they classified?

May 4, 2024

Psychoactive substances are chemical substances (drugs or psychotropic drugs) of natural or synthetic origin that affect the functions of the central nervous system (CNS), that is, to the brain and the spinal cord. Among its effects, we can find the inhibition of pain, the change of mood, the alteration of perception, and so on.

Although drugs are associated with therapeutic and medicinal use, drugs are often considered recreational. The latter tend to relate to young people, but in reality they are consumed by people of very different profiles and of different ages.

Psychoactive substances are very versatile and have a wide repertoire of effects. It should be noted that some psychoactive substances are considered drugs and psychotropic drugs. One example is the Xyrem, which as medical use can be used for the treatment of narcolepsy, but in leisure circuits it is called liquid ecstasy or GHB.

You can know more about this substance in our article: "GHB: the drug that rapists use to neutralize their victims"

Psychoactive substances: their beginnings

Psychoactive substances have not only been used by modern man, but have been consumed for thousands of years. In fact, there are discoveries that indicate that they have been consumed since 3000 BC. The data suggest that opioids were already taken at that time. Later, it is known that the Aztecs made use of peyote and some shamans of hallucinogenic substances.

How psychoactive substances are classified

In the following lines we have made a classification of psychoactive substances differentiating the psychotropic drugs.

Types of psychotropic drugs

There is a great variety of psychotropic drugs and, therefore, they can be classified in different ways. None of the categories listed below are better than the rest, but we have taken into account the functionality or usefulness of each group of psychotropic drugs.

1. Neuroleptics and antipsychotics

They are psychotropic drugs that are used to treat psychotic crises. Some of these drugs have potent side effects, and often consume them, for example, patients with schizophrenia or paranoid disorder. Among the best known are haloperidol or olanzapine.

2. Anxiolytics and Hypnotic-sedatives

Anxiety disorders are one of the most frequent reasons for psychological consultation, so these psychotropic drugs are also the most used. Some of these drugs, which are included in this classification, are used as sedatives to facilitate sleep. We can highlight the diazepam (valium) or the tranquimazin.

3. Antidepressants

They are the psychotropic drugs used to treat depression, and they tend to increase the presence of serotonin, noradrenaline or dopamine in the brain thanks to different actions. For example, by inhibiting the reuptake enzymes. Highlights, among others, fluoxetine (or prozac) or sertraline.

4. Mood stabilizers / Eutimizers

This type of psychotropic drugs are psychoactive substances that are used in the case in which a patient suffers bipolar disorder, in this way, it is possible to stabilize the mood and keep it stable. We can highlight lithium salts or carbamazepine.

  • You can delve into these classifications in our article: "Types of psychotropic drugs: uses and side effects"

Types of drugs

Drugs also have different effects and can be classified in several ways. They are the following.

According to its legality

According to their legality, drugs can be classified into:

  • Legal drugs: are those that are allowed by the law of a country. These laws can change from one country to another. In Spain, alcohol or tobacco are legal drugs.
  • Illegal drugs: are those that their consumption is not allowed in a country. In Spain, for example, we can talk about cocaine or ecstasy. The drug traffickers are responsible for marketing this type of substance, one of the best known was Pablo Escobar. You can read his biography in our article: "Biography and personality of Pablo Escobar, the irreducible narco"

According to how they are consumed

Drugs can be consumed in different ways. But what are they?

  • Smoked: tobacco, hashish or "crack" are some examples.
  • Oral route: ecstasy, alcohol, LSD
  • Inspired: speed, cocaine streaks.
  • Inhaled: glue, popper.
  • Injected: heroin

According to its effect on the central nervous system (CNS)

According to its effects, drugs can be classified in the following ways:

  • Depressants of the nervous system : They produce an inhibitory effect on some functions of the central nervous system.Alcohol, hypnotics (sleeping pills or barbiturates), anxiolytics such as benzodiazepines, opiates (heroin, morphine, methadone, etc.) or tranquilizers belong to this group.
  • Stimulants of the nervous system : They produce an opposite effect to the previous ones and they are exciting drugs, which provoke sensation of energy and stimulation of the waking state. Amphetamines, nicotine, cocaine or caffeine belong to this group. Psychedelic or disturbing substances: These are substances that cause hallucinations and exaggerated changes in perception. The best known are: LSD, mescaline, ketamine and MDMA

Drug use is very widespread today, and the variety of these is very remarkable. Some of these drugs are natural, produced by nature itself. Others, the synthetic ones, follow a series of chemical processes for their creation. The immediacy of its effects has to do with the rapidity in which the active principle passes into the blood. Generally, injectable drugs are the ones that cause the most rapid effects, and also the most addictive ones.

  • If you want more information about drugs, you can read our article: "Types of drugs: know their characteristics and effects"

Classes of psychoactive drugs (May 2024).

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