Dear Mr. or Ms. Patient With Pre-excited Afib or Ischemic VT:
I just wanted to let you know, if you come to our ER, you are screwed. Currently, our best drug to deal with your arrhythmias of pre-excited atrial fibrillation (afib) or ischemic ventricular tachycardia is not available anywhere: procainamide. It seems the one drug company who makes this drug (Hospira) has a few manufacturing delays (oops), so the drug is on backorder.
So come ready to have your heart shocked.
Hopefully we'll have some analgesic or anesthetic drugs available in our pharmacy that aren't on backorder so you won't feel your cardioversion.
Wishing you the best, as always...