The Link Between ADHD Meds and Parkinson's Disease Risk

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People with attention-deficit hyperactivity disorder (ADHD) may be at higher risk for developing Parkinson’s disease and Parkinson’s-like syndromes, according to researchers at the University of Utah Health in Salt Lake City. Their study results were published in Neuropsychopharmacology.

The researchers analyzed 20 years of data from the Utah Population Database, which contains medical information for more than 11 million people. The study involved 31,769 people with ADHD — 4,960 of whom were prescribed medications, stimulants like Ritalin, Concerta, Daytrana, Metadate, Methylin (methylphenidate), Adderall (amphetamine salts), or Focalin (dexmethylphenidate) — and 158,790 controls without ADHD.

According to the researchers, people diagnosed with ADHD are more than twice as likely as those without the neurobehavioral disorder to develop early-onset Parkinson's (between ages 21 and 66) and Parkinson-like conditions. For this group, Parkinson’s risk is six to eight times higher in people prescribed ADHD medications.

Sourced from: Neuropsychopharmacology