I heard that azthromycin interferes with the absorption of rifampin, but I'm not sure if it's true or if it applies to rifabutin..
No, don't think so. I double checked with the drug interaction checker I use.
On the other hand, Biaxin (Clarithromycin) does have an interaction. BUT, the bart guru still pairs them together...so I guess it's not a serious one.
Probably the P450 inhibitor or enhancer issue.
Moderator, Lyme Forum
Symp started April/2013; Buhner's Lyme May 15-July24/14; Igenex pos. July 3/14
Doxy: July 4-Aug.24/14;Zithro July26-Aug24/14; Amox + Proben. Aug. 29/14;
added biaxin Sept. 26/14
Disc. amox,added Ceftin Nov. 20th.;
Disc. biaxin added Buhner bart herbs Dec/14;Jan/15 pulsing Tinda (w/ Ceftin);
Abx/herb break Apr-July/15; July-mino; Aug. added Rif;
Nov./15 mino - to biaxi