Officials at Atlanta-based Grady Memorial Hospital are moving forward with plans to revamp the facility's outpatient pharmacy, investing $2.6 million in a robot worker that they say will reduce wait times. Grady officials this month approved the purchase of the robot, which can stock 720 drugs and process 550 prescriptions an hour. The robot is expected to be running by November. The hospital is also shifting some of the pharmacy pickup sites to a building about two blocks from the hospital.