Dr. Leslie Mendoza Temple, a Chicago-area physician and chair of the advisory board, said the group scrutinized scientific research and listened to patients. The board has rejected requests to add anxiety as a condition because it is too broad, she said. But the eight conditions the board approved would give doctors the ability to prescribe relief to patients with specific maladies or long-term pain. A significant bonus, she said, is providing safer alternatives to powerful painkillers that can be highly addictive or even kill.