Well, here we are at eleven A.M. Four doses down with no adverse side effects.
Nathan felt that the third dose tasted funny, but the fourth had no taste. Apparently this last dose is the dose that we will take home. 1/10 dilution.
Also, it seems that they do not expect Nathan to have a reaction during this visit. We had expected that they would bring him to the brink of anaphlaxis, treat him with Epinephrine, observe him and then send us home with a lower dose.
So far, this is going much less dramatically than we had expected and so much more pleasant than we could have hoped for.