Redd, yes 200 mg of doxycycline and I think the same amount for minocycline. You will have to check on that, because David has never prescribed it, but they are too similar to need vastly different dosages.
Daunted as well, I don't know about the amoxycillin but the zithromax is taken to avoid the danger of resistance. I take roxithromycin, also a macrolide, for this; it has the advantage of both getting through the BBB and working synergically with the doxycycline which has the effect of maximising the use of the two. It is not available on prescription in the US or Canada, unfortunately. Actually, it isn't licensed in this country either, but medical practitioners are allowed to prescribe it: it is imported from France. Try telling that to some GPs, though!
Rifampicin can be taken to get the same result and mino/doxy are far better taken with any of these, mainly to avoid resistance developing. It doesn't matter that they don't all cross the BBB because they don't all dutifully only start working when they pass that barrier. They will scoop up the CPn and anything else enroute. Daunted's guess seems pretty valid to me.
As far as the flagyl goes, best not to rush it, but introduce it gradually. The good thing about it is that you can choose when to take it according to you schedule. I am on day two of my second booster dose and am already feeling wiped out.
Anyway, Redd, when are you going to start your own regimens thread?
I'll do an update in about a week.