I probably should have said before that I do not know that the novocaine lasted longer in me because of the previous GBS, I just suspect it might be so. As Julie pointed out, the type of drug used can vary over time or between dentists. Also the time that lasted so long, the dentist did “two shots” so it may have been a slightly different way to numb the teeth. The most important point I think anyone has said is to make sure that the dentist knows about the GBS and that everyone knows that damaged nerves might not act exactly the same are undamaged ones.
WithHope

typically the anaphylaxis kit also has steroids –either hydrocortisone or solumedrol (methylprednisolone) to give IV if there is an significant allergic reaction. Epinephrine can be given as a shot or they could send an “epi-pen” but usually IV benadryl and an IV steroid are sent for serious, but not “stopped breathing” reactions. The reasons to use steroids and/or benadryl include hives, shortness of breath, swelling of the face/eyes/lips or drop in blood pressure. I do not mean to sound scarey, but working at a place that gives lots of immunoglobulin has made me take it seriously that significant reactions can occur and that they can be severe enough that you may not be able to get help if you are alone and not prepared. Please do not do the infusion at home without the resources for emergent treatment if a reaction were to occur. You are an adult and a lawyer at that so can understand that people take risks for reason of convenience, but at least be prepared if you choose to do this at home the first times. Stay safe.
WithHope for a cure of these diseases

Hey, I have another question. Are you superman lost in Gotham City????