New rules allowing GPs and nurse practitioners to prescribe drugs to treat ADHD increase the risk of over-diagnosis, over-prescribing, addiction, psychosis and other harms, some clinicians are warning. Christchurch hospitality worker Caity became increasingly anxious in the month after starting on ADHD medication. "I just couldn't shut my brain off at night, so I went 11 days without sleeping, which was definitely not fun." Then the TV started talking to her.