They are homeopathic tinctures formulated to treat Bart (A-Bart) or Babs (A-Bab). I don't know why they are named with "A-."
I never finished my course of A-Bart and haven't started A-Bab yet. I'm behind in my treatment since I took a break to get over a virus. I'll post about my experience if it is remarkable in any way.
A-Bab stands for Babesia? A-Bart stands for Bartonella? just asking.
Try an internet search for Byron White Herbal Formulas.
(Easier than posting a link with which MH might tamper.)
If still no luck, write back for more clues.