12R34Y: Meperidine is sort of a "leftover" from the days before we got fentanyl. If a patient had an allergy to morphine or if morphine didn't work on his/her pain, we used meperidine. Currently, it is just another weapon in the arsenal for treating pain.
Honestly, since fentanyl has been onboard, I haven't used morphine or meperidine for anything but cardiac chest pain (and then it was MSO4, obviously).
southerndoc : Our pharmacy watches the bottom line very closely, so I can only assume that DuoNeb isn't horribly expensive. In the emergency setting, it is nice not to have to measure out two individual respiratory meds, instead put one "bomb" into a nebulizer and get the medicine to the patient.
No, I don't work in Seattle, I work in a mid-sized city in Iowa. While present, risk of meperidine abuse in the pre-hospital setting is low.
jbar : I really would like to have a calcium channel blocker available, but we don't currently. They have been telling us for about 6 months that we are getting lopressor (beta-blocker, I know) but it hasn't shown up in med bags yet.