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Long-term amphetamine exposure at sufficiently high doses in some animal species is known to produce abnormal dopamine system development or nerve damage, [27] [28] but, in humans with ADHD, long-term use of pharmaceutical amphetamines at therapeutic doses appears to improve brain development and nerve growth.
Drugs in the class of amphetamines, or substituted amphetamines, are known to induce "amphetamine psychosis" typically when chronically abused or used in high doses. [8] In an Australian study of 309 active methamphetamine users, 18% had experienced a clinical level psychosis in the past year. [9]
Despite having a similar therapeutic mechanism of action as first-line medications containing amphetamine, the prescription of dextromethamphetamine for ADHD is rare due its relatively greater reinforcing potential, in addition to the comparable efficacy and presumably greater safety of methylphenidate and amphetamine. [21] [65] The body ...
Vyvanse (lisdexamfetamine) – a pro-drug stimulant used to treat attention deficit hyperactivity disorder and binge eating disorder; Vyvanse is converted into Dexedrine in vivo; Viibryd – an antidepressant of the serotonin modulator and stimulators class; Vivactil (protriptyline) an antidepressant also used in the treatment of nerve pain
The first patented amphetamine brand, Benzedrine, was a racemic (i.e., equal parts) mixture of the free bases or the more stable sulfate salts of both amphetamine enantiomers (levoamphetamine and dextroamphetamine) that was introduced in the United States in 1934 as an inhaler for treating nasal congestion. [2]
The Drug Enforcement Administration is increasing the production limit of Vyvanse and its generic equivalents by about 24% to address the ongoing global shortage of ADHD medications.
Drug companies, like Takeda, the maker of Vyvanse, have until 2028. Red No. 3 is present in about a quarter of baking decorations and one-tenth of cookies sold in the US, Bloomberg reported.
Amphetamine is a potent central nervous system (CNS) stimulant of the phenethylamine class that is approved for the treatment of attention deficit hyperactivity disorder (ADHD) and narcolepsy. [82] Amphetamine is also used off-label as a performance and cognitive enhancer, and recreationally as an aphrodisiac and euphoriant.