Guidelines for ATC classification and DDD assignment - WHOCC

C01C CARDIAC STIMULANTS EXCL. CARDIAC GLYCOSIDES
This group comprises agents for the treatment of hypotension.
Respiratory stimulants are classified in R07AB.
Dihydroergotamine, which is used in the treatment of migraine as well
as hypotension, is classified in N02CA - Ergot alkaloids.
Combinations with peripheral vasodilators, see C04 - Peripheral
vasodilators.
This group includes various drugs used on different indications.
The DDDs are therefore established individually for each substance
(i.e. each ATC 5th level).
C01CA Adrenergic and dopaminergic agents
This group comprises sympathomimetics used in the treatment of
hypotension. Etilefrin in combination with dihydroergotamine is
classified in this group. Oral products of ephedrine are classified in
R03CA.
C01CE Phosphodiesterase inhibitors
Phosphodiesterase inhibitors such as theophylline, which are used in
asthma therapy, are classified in R03D.
C01CX Other cardiac stimulants
This group includes agents, which cannot be classified in the preceding
groups.
C01D VASODILATORS USED IN CARDIAC DISEASES
This group comprises preparations used in ischemic heart diseases. See
also C02 - Antihypertensives, C03 - Diuretics, C04 - Peripheral
vasodilators, C07 - Beta blocking agents, C08 - Calcium channel
blockers and C09 - Agents acting on the renin-angiotensin system.
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