Nearly 8000 patients received medication for ADHD last year, a 5.4% increase compared to 2011-12 and an 18% increase since 2009-10. Almost 750,000 people took antidepressants last year, 4% higher than the previous 12 months and a 53% hike on a decade ago.
Scottish Conservative health spokesman and deputy leader Jackson Carlaw MSP raised concern that patients were being given drugs instead of the help they really need.
He said: "There is no question pills have a place. But we are parking people on this medication, and giving them next to no hope of full recovery."
Most on drugs for ADHD are in their teens, but a growing number of adults are also receiving treatment.
Dr Premal Shah, chair of a working group looking at adults with ADHD, said some parents had recognised their own symptoms after their children had been diagnosed.