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C CARDIOVASCULAR SYSTEMThis group comprises substances used for the treatment of cardiovascular conditions.
Drugs used for the treatment of hypertension are classified in C02 - Antihypertensives, C03 - Diuretics, C07 - Beta blocking agents, C08 - Calcium channel blockers, and C09 - Agents acting on the renin-angiotensin system.  For the classification of combination products of antihypertensives from different ATC groups, the following ranking should be used, from higher to lower precedence: C09, C07, C08, and C03.
C02 ANTIHYPERTENSIVES
See also C03 - Diuretics, C07 - Beta blocking agents, C08 - Calcium channel blockers and C09 - Agents acting on the renin-angiotensin system.
Antihypertensives are mainly classified at 3rd levels according to the mechanism of action.  Most headings are self-explanatory:
 C02A	Antiadrenergic agents, centrally acting
 C02B	Antiadrenergic agents, ganglion-blocking
 C02C	Antiadrenergic agents, peripherally acting
 C02D	Arteriolar smooth muscle, agents acting on
 C02K	Other antihypertensives
 C02L	Antihypertensives and diuretics in combination
 C02N	Combinations of antihypertensives in ATC gr. C02
| The oral DDDs are based on the average doses needed to reduce the blood pressure to a normal level in patients with mild-moderate hypertension. Parenteral DDDs are based on dosages used for the treatment of hypertensive crises and are based on the content of the active ingredient pr. Vial (ampoule). | 
C02D ARTERIOLAR SMOOTH MUSCLE, AGENTS ACTING ON
See also C08 - Calcium channel blockers.
C02DA Thiazide derivatives
Parenteral preparations of diazoxide are classified here.
Oral preparations containing diazoxide for treatment of hypoglycemia are classified in V03AH.
| ATC code | Name | DDD | U | Adm.R | Note | 
| C02DA01 | diazoxide | 0.3 | g | P | 
Last updated: 2024-12-27

