Guidelines for ATC classification and DDD assignment - WHOCC

C CARDIOVASCULAR SYSTEM
C01 CARDIAC THERAPY
C01A CARDIAC GLYCOSIDES
This group comprises plain and combined preparations containing
cardiac glycosides, incl. standardized herbal extracts. Cardiac
glycosides in combination with substances in group C01D and C01E are
classified in this group. Combinations with antihypertensives, beta
blocking agents, calcium channel blockers and ACE inhibitors, see
group C02, C07, C08 and C09 respectively.
The DDDs are based on the average maintenance dose for the
treatment of cardiac failure. Exception: the DDD for deslanoside is
for acute treatment.
C01AA Digitalis glycosides
Combinations with diuretics are classified here.
C01AB Scilla glycosides
C01AC Strophantus glycosides
C01AX Other cardiac glycosides
This group includes e.g. peruvoside convallaria glycosides.
C01B ANTIARRHYTHMICS, CLASS I AND III
This group comprises preparations used in the treatment of arrhythmias.
The agents are listed according to the Vaughan Williams classifi-cation
of antiarrhythmics. The division of class I antiarrhythmics may vary,
depending on the literature used. The 3rd ed. of Avery's "Drug
Treatment" (1987) and "Drugs" 31, 93 - 95, 1986 are used as a basis for
the ATC classification. Class II antiarrhythmics see C07 and class IV,
see C08 (e.g. verapamil).
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