Guidelines for ATC classification and DDD assignment - WHOCC

J01XB Polymyxins
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This group comprises polymyxin antibacterials acting on the bacterial
cytoplasm membrane. Oral formulations containing colistin are
classified in A07A.
J01XC Steroid antibacterials
This group comprises steroid antibacterials, inhibiting the binding of
bacterial transfer-RNA and the 50-S part of the ribosomes.
J01XD Imidazole derivatives
This group comprises imidazole antibacterials acting through active
metabolites in anaerobic bacteria. Only formulations for parenteral use
of e.g. metronidazole are classified in this group. Oral formulations and
suppositories of imidazole derivatives are classified in P01 -
Antiprotozoals. Pessaries are classified in G01 - Gynecological
antiinfectives and antiseptics.
The DDDs for the parenteral imidazole formulations are based on
the treatment of anaerobic bacteria infections.
J01XE Nitrofuran derivatives
Preparations, which in addition contain a urine acidifier, such as vitamin
C, calcium- or ammonium chloride, are classified at the plain 5th levels.
The DDDs are generally based on the treatment of acute urinary
tract infections.
J01XX Other antibacterials
Preparations, which in addition contain a urine acidifier, such as vitamin
C, calcium- or ammonium chloride, are classified at the plain 5th levels.