A drug, broadly speaking, is any substance that, when absorbed into the body of a living organism, alters normal bodily function. There is no single, precise definition, as there are different meanings in drug control law, government regulations, medicine, and colloquial usage.
In pharmacology, a drug is "a chemical substance used in the treatment, cure, prevention, ordiagnosis of disease or used to otherwise enhance physical or mental well-being." Drugs may be prescribed for a limited duration, or on a regular basis for chronic disorders.
Recreational drugs are chemical substances that affect the central nervous system, such as opioids or hallucinogens. They may be used for perceived beneficial effects on perception, consciousness, personality, andbehavior. Some drugs can cause addiction and/or habituation.
Classes of drugs (Clases de drogas)
The characteristics of the drug unit conceal large differences from one type of drug to another.
It causes euphoria and analgesia. The characteristics of the drug unit are as follows: psychic unit in varying degrees. Establishment of physicaldependence. Following the reduction ofconsumption below a critical level, there is a withdrawal syndrome disorder.
They are synthetic with tonic properties compounds to stimulate the Central Nervous system (CNS) counteracting the effects of the depressants. The drug dependence characteristics: produce variable psychic dependence. Small physical dependence. The tolerance is set fairly quickly.
Chemicallysynthesized substances used as "recreational drugs" looking for in your consumption a greater receptivity towards sensual aspects and greater empathy with each other. The best known of these is the ecstasy.
Drug dependence characteristics: varying psychic dependence. Physical dependence marked when doses are significantly older at therapeutic levels. Withdrawal is of a very serious nature(nervous excitement, nausea, vómyths, seizures, and manifestations of terror).
The Cannabis type drugs
Preparations containing mainly leaves and flowering units not deprived of the resin are given the name of cannabis, grass, or Kif. Cannabis resin is called hashish. In general euphoria, perceptual changes, as Visual and auditory distortions, temporary disorientation and decrease in immediatememory occurs. If consumed in company tends to the verve and spontaneous laughter. His drug addiction is characterized by: • moderate to strong psychological dependence. • Little or no physical dependence. • No withdrawal appears. • Displayed some degree of tolerance associated with intense use.
It is a powerful stimulant brain, very similar in its action to amphetamines, it provokesfeelings of great muscular strength and mental life. They are able, in high doses, provoke an euphoric excitation and hallucinatory experiences. Drug dependence is presented as follows: • very intense psychological dependence. • Physical dependence. • Withdrawal syndrome manifests itself with anxiety, nausea, tremors, fatigue and depressive symptoms. • Lack of tolerance. • Strong tendency tocontinue Administration.
These drugs cause an excited state of the central nervous system and central autonomic hyperactivity manifested in changes of the mood, deformation of sensory perception , visual hallucinations, delusions, depersonalization, etc.
They produce a State of total satiety of impulses, they suppress the sensation of pain. For example: heroin, morphine,methadone, etc. The features of the unit are: • strong psychological dependence which manifests itself as an irrepressible impulse to continue consuming drugs. • Presents physical unit that can be implemented since the first administered dose. • Abstinence disorder occurs 36-72 hours after the deprivation and is very intense. • Establishing tolerance.
Tobacco and coffeeína
Tobacco and caffeine can...