The authorization was granted to the life sciences company NeuroSigma based in Los Angeles.
The device is designed for kids ages 7 to 12 who are not taking a prescription for the disorder.
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Children wear a small adhesive patch while they sleep. It then delivers a low-level electrical pulse to parts of the brain responsible for ADHD symptoms.
It's called the Monarch external Trigeminal Nerve Stimulation (eTNS) System.
The device is not currently covered by insurance and could cost just over $1,000.