I used to get iron dextran infusions. Pro-can give large dose of iron over one infusion. Con-this is a form of iron that is more likely to cause an allergic reaction. I never had an allergic reaction but had to go to the one infusion b/c my crappy veins. Every time I got an infusion, PICC team had to insert the IV so my doctor changed me from Venofer to Iron dextran. I am not sure if it is cheaper or if you are willing to try it but just throwing it out there as another thing to look into. Good luck!!