Substance-induced disorders are a type of substance-related disorders which include the direct effects of a drug; these include intoxication withdrawal substance-induced mental disorders Substance-Related Disorders, which include pathological behavior patterns that are related to drug use (use a substance despite significant problems relating to this matter arise, for. example, that patients continue) are considered Substance Use Disorders , The commonly used terms “addiction”, “abuse” and “dependence” are light and variable, defined as that they may be useful in the systematic diagnosis. The specific symptoms and treatment of intoxication and withdrawal vary by the substance or the substance class and will be discussed elsewhere in the Merck Manual. Intoxication intoxication refers to the development of a reversible substance-specific syndrome with mental or behavioral changes, u. a. cognitive changes, euphoria, poor judgment, impaired physical and social functioning, emotional instability and strife or a combination thereof. In extreme cases intoxication can lead to an overdose with significant morbidity and mortality. Withdrawal withdrawal refers to substance-specific physiological effects, symptoms and behavioral changes that are caused by terminating or reducing the uptake of a substance. To be classified as a substance withdrawal disorder, the syndrome must cause the patient significant strain and / or the function compromise (eg. As social, professional). detect most patients with withdrawal that a new administration of the substance will reduce its symptoms. Although some patients with withdrawal syndrome, a substance disorder, some drugs, especially opioids, sedatives / hypnotics and stimulants lead to withdrawal symptoms, even if these legitimate medical reasons and for relatively short periods (<1 week for opioids) are taken as prescribed. Withdrawal symptoms that develop after an appropriate medical use are not considered as criteria for the diagnosis of substance abuse. Substance-induced mental disorders Substance-induced mental disorders are mental changes, which are generated by substance use or withdrawal and independent mental disorders are similar (eg. As depression, psychosis, anxiety or neurocognitive disorders). To be classified as a substance-induced, must be known that the substance involved is able to cause the disorder. The substances can be members of the 10 classes of substances which typically cause substance-related disorders, or many others (eg. As anticholinergics and corticosteroids may cause transient psychotic syndromes). In addition, should the mental disorder appear within 1 month of substance intoxication or withdrawal caused significant distress or impair the functional capacity have not manifested yourself against Use of the substance coming not only during the acute delirium by the substance before not hold for an extended period of * * certain neurocognitive caused by alcohol, inhalants or sedative hypnotics disorders and cognitive disorders, caused by hallucinogens can be permanent.

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