Guidelines for ATC classification and DDD assignment - WHOCC

Combinations with ACE inhibitors are classified in C09BB.
Combinations with beta blocking agents are classified in C07F.
The DDDs for calcium channel blockers are based on the treatment
of mild-moderate hypertension, although some are used for other
indications (e.g. angina pectoris).
The DDDs for oral and parenteral preparations are equal and are
based on the oral dose, since oral preparations represent the major
fraction of the total consumption.
C08C SELECTIVE CALCIUM CHANNEL BLOCKERS WITH MAINLY
VASCULAR EFFECTS
C08CA Dihydropyridine derivatives
Preparations containing nifedipine in combination with ergot alkaloids
are classified in C08CA55.
Combinations with diuretics are classified in C08G.
Amlodipine in combination with atorvastatin is classified in C10BX03.
C08CX Other selective calcium channel blockers with mainly vascular effects
C08D SELECTIVE CALCIUM CHANNEL BLOCKERS WITH DIRECT
CARDIAC EFFECTS
C08DA Phenylalkylamine derivatives
Combinations containing verapamil and quinidine are classified in
C08DA51.
C08DB Benzothiazepine derivatives
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