Table 1.

World Health Organization guidelines for drug-resistant tuberculosis, 2016 updatea

GroupMedicineAbbreviation
A. FluroquinolonesbLevofloxacin
Moxifloxacin
Gatifloxacin
Lfx
Mfx
Gfx
B. Second-line injectable agentsAmikacin
Capreomycin
Kanamycin
(Streptomycin)c
Am
Cm
Km
(S)
C. Other core second-line agentsbEthianomide / Prothionamide
Cycloserine / Terizidone
Linezolid
Clofazimine
Eto / Pro
Cs / Trd
Lzd
Cfz
D. Add-on agents (not part of the core MDR-TB regimen)D1Pyrazinamide
Ethambutol
High-dose isoniazid
Z
E
H
D2Bedaquiline
Delamanid
Bdq
Dlm
D3p-aminosalicylic acid
Imipenem-cilastatind
Meropenemd
Amoxicillin-clavulanated
(Thioacetazone)e
PAS
Ipm
Mpm
AMx-Clv
(T)

Reprinted with permission from World Health Organization. WHO treatment guidelines for drug-resistant tuberculosis, 2016 update. Geneva: WHO, 2016:23.22

  • MDR-TB = multidrug-resistant tuberculosis.

  • aThis regrouping was intended to guide the design of longer regimens; the composition of the recommended shorter MDR-TB regimen is standardised.

  • bMedicines in Groups A and C are shown by decreasing order of usual preference for use (subject to other considerations).

  • cRefer to the source text for the conditions under which streptomycin may substitute other injectable agents. Resistance to streptomycin alone does not qualify for the definition of extensively drug-resistant tuberculosis.

  • dCarbapenems and clavulanate are meant to be used together; clavulanate is only available in formulations combined with amoxicillin.

  • eHIV status must be confirmed to be negative before thioacetazone is started.