At the rate my PD progression is going, in a year or so I may be dead or in a nursing home for indigent patients, wheel chair bound, stuck in a corner, heavily drugged and drooling. As we know, there aren't many drug options on the table that can potentially slow or stop this progression. I am willing to take a chance on doxycycline. I believe my primary care doc will prescribe it for me. At this stage of the game there's not much for me to lose.