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The definition of ATS abuse is a maladaptive pattern of substance use manifested by recurrent and significant adverse consequences related to the repeated use of substances. [20] While dependence refers to the use of amphetamine 'accompanied by evidence of tolerance, withdrawal, or compulsive behaviour". [ 21 ]
Blood or plasma pseudoephedrine concentrations are typically in the 50 to 300 μg/L range in persons taking the drug therapeutically, 500 to 3,000 μg/L in people with substance use disorder involving pseudoephedrine or poisoned patients, and 10 to 70 mg/L in cases of acute fatal overdose. [109] [110]
Ephedra was used 5000 years ago in China as a medicinal plant; its active ingredients are alkaloids ephedrine, pseudoephedrine, norephedrine (phenylpropanolamine) and norpseudoephedrine . Natives of Yemen and Ethiopia have a long tradition of chewing khat leaves to achieve a stimulating effect. The active substances of khat are cathinone and ...
Stimulant use disorder is a type of substance use disorder where the use of stimulants caused clinically significant impairment or distress. It is defined in the DSM-5 as "the continued use of amphetamine -type substances, cocaine , or other stimulants leading to clinically significant impairment or distress, from mild to severe". [ 1 ]
Substance-related disorders, also known as substance use disorders, are a type of mental disorder that affects a person's brain and behavior, leading to their inability to control their use of substances like legal or illegal drugs, alcohol, or medications. The disorders can lead to large societal problems.
Substance use disorder (SUD) is the persistent use of drugs despite substantial harm and adverse consequences to self and others. [8] Related terms include substance use problems [9] and problematic drug or alcohol use. [10] [11] Substance use disorders vary with regard to the average age of onset. [12]
Substance dependence, also known as drug dependence, is a biopsychological situation whereby an individual's functionality is dependent on the necessitated re-consumption of a psychoactive substance because of an adaptive state that has developed within the individual from psychoactive substance consumption that results in the experience of withdrawal and that necessitates the re-consumption ...
Substance intoxication may often accompany a substance use disorder (SUD); if persistent substance-related problems exist, SUD is the preferred diagnosis. [5] The term "intoxication" in common use most often refers to alcohol intoxication, or drug addiction usually opioids consisting of an overdose; resulting in death.