GABA-Flag: A Pre-Stimulant Non-Responder Test for ADHD

A lab test ordered before a first ADHD stimulant prescription that reads GABA-pathway gene variants and flags the roughly one-in-three patients unlikely to be helped by stimulants, so they move straight to non-stimulant options and matching trials. The flag targets a subtype of ADHD in which the balance between the brain's activating and calming signals is disrupted. The test is genetic-only at launch and ships with a prospective study checking how well the flag predicts real stimulant response.