“Excessive doses produce hyperactivity, paranoia and other psychotic symptoms.”

“Paradoxical CNS stimulation results in talkativeness, excitability, restlessness, anxiety, mania, hyperactivity, delirium, and rage.”

“Psychologists are fighting gender bias in research on attention-deficit hyperactivity disorder.”

“His hyperactiveness became evident as he could not sit still for even a minute, constantly fidgeting and bouncing around the room.”