We used to! Doctor would write prescription on a pad, and you could take the script to any pharmacy.
Of course, doctor penmanship is terrible, and we're going paperless, so we've got to digitize. And every doctor's office and every pharmacy has their own system, and sometimes they can talk (but I think there's a lot of faxing behind the scenes)
Of course, you can't know what drugs will be covered, so the doctor has to guess, and if they guess wrong, the pharamacist will want to check with the doctor to see if something else is OK to save you money, but nobody can be reached, ever.
Of course, doctor penmanship is terrible, and we're going paperless, so we've got to digitize. And every doctor's office and every pharmacy has their own system, and sometimes they can talk (but I think there's a lot of faxing behind the scenes)
Of course, you can't know what drugs will be covered, so the doctor has to guess, and if they guess wrong, the pharamacist will want to check with the doctor to see if something else is OK to save you money, but nobody can be reached, ever.