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TLDR: A patient developed a compulsive chewing behavior when taking mixed amphetamine salts (MAS) for ADHD, highlighting the need to monitor for unusual side effects with stimulant use. Highlights: Patient Background: The patient is a 32-year-old woman with a…
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New research reveals that people with a history of methamphetamine dependence face a startling elevated risk of developing Parkinson’s disease or related movement disorders later in life. Key Facts: Individuals dependent on methamphetamine had almost 3 times t…
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Cocaine abuse leads to dysfunction of brain dopamine systems and the development of addiction. New research identifies changes in the dopamine transporter as a driving force underlying cocaine addiction, and points to a novel way to reverse these detrimental e…
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Researchers have found that repeated low doses of amphetamine can alter reward and motivation circuits in the human brain. The changes mirror what is seen in addiction and schizophrenia. Key Facts: Healthy volunteers received 4 doses of a low 20mg dose of amph…
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A series of studies suggest that repeated low doses of d-amphetamine can lead to a progressively greater behavioral response in some people. This phenomenon, known as “behavioral sensitization,” has been observed in animal models and hypothesized to contribute…
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Amphetamine is well known for its ability to increase dopamine levels in the brain. But new research suggests the psychostimulant drug may also directly alter dopamine 2 receptors, with implications for behavioral effects and physiological changes seen after c…
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Major depressive disorder affects over 17 million American adults each year. For up to 30% of these patients, standard antidepressant medications fail to provide adequate symptom relief – a condition known as treatment-resistant depression (TRD). Now, new rese…
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