RE: Is this kind of service explicitly forbidden at some pharmacies?
No pharmacy, chain or independent, would make a rule that you can't leave the filling area to talk to a customer. BUT in many busy chain pharmacies, if you do leave, you are letting down your "team". Because reimbursements are so low, pharmacy has become a volume game. Most stores have been designed to be as efficient as possible. If one member of the team leaves his post, the efficiency is ruined. In essence, my customer service skills have been designed out of the prescription filling process.
I didn't last long at the chains. :(
RPh