Does anyone know why it takes so long to get prescriptions filled at Walmart? My mom had to get one filled today, and the doctor had called Walmart hours earlier and authorized the refill. She goes in to pick it up and they said it would be a 20 minute wait. There was no one else in line. In the past they have told her it would be a 30 minute or 45 minute wait. We don't live in a big city (~14,000 population) and there's multiple other pharmacies in town. I guess the only thing I can think of is they ALWAYS have a huge backlog of scripts to fill but that seems like kind of a stretch to me. Anyone with any insight as to why this is?