I have not taken it but can share this bit of information with you. It is Rifabutin and similar to Rifampin. In Schaller's book, a patient was give 500 mg Zithromax and 300 mg Rifabutin for 8 weeks and cured of bartonella. It is the ONLY thing he writes about that the person was apparently cured although he did continue to need medication for mental problems.
Unfortunately I don't think I can take it as the Rifampin causes me to be dizzy.