• C02A Antiadrenergic agents, centrally acting 25 drugs
• C02B Antiadrenergic agents, ganglion-blocking 1 drugs
• C02C Antiadrenergic agents, peripherally acting 16 drugs
• C02K Other antihypertensives 12 drugs
• C02L Antihypertensives and diuretics in combination 1 drugs