Organism | Number of drugs | Preferred drug regimen | Dosing frequency | |
---|---|---|---|---|
MAC | Nodular-bronchiectatic disease | 3 | Macrolide Rifampicin Ethambutol | 3 times weekly |
Cavitary disease |  ≥ 3 | Macrolide Rifampicin Ethambutol Amikacin IV (or streptomycin) | Daily (3 times weekly can be used with aminoglycosides) | |
Refractory disease |  ≥ 4 | Macrolide Rifampicin Ethambutol ALIS or amikacin IV | Daily (3 times weekly can be used with aminoglycosides) | |
M. kansasii | Â | 3 | Macrolide Rifampicin Ethambutol OR | Daily OR 3 times weekly |
Isoniazid Rifampicin Ethambutol | Daily | |||
M. xenopi |  |  ≥ 3 | Macrolide and/or moxifloxacin Rifampicin Ethambutol Amikacin | Daily (3 times weekly can be used with aminoglycosides) |
M. abscessus |  |  ≥ 3 | Guided by in vitro susceptibility and in collaboration with experts | Based on expert consultation |