| T46.0 | Cardiac-stimulant glycosides and drugs of similar action 
 | 
	| T46.1 | Calcium-channel blockers 
 | 
	| T46.2 | Other antidysrhythmic drugs, not elsewhere classified 
 
Excludes:
beta-adrenoreceptor antagonists ( T44.7 )
 | 
	| T46.3 | Coronary vasodilators, not elsewhere classified Dipyridamole
 
Excludes:
beta-adrenoreceptor antagonists ( T44.7 ) 
calcium-channel blockers ( T46.1 )
 | 
	| T46.4 | Angiotensin-converting-enzyme inhibitors 
 | 
	| T46.5 | Other antihypertensive drugs, not elsewhere classified Clonidine
 Guanethidine
 Rauwolfia
 
 
Excludes:
beta-adrenoreceptor antagonists ( T44.7 ) 
calcium-channel blockers ( T46.1 ) 
diuretics ( T50.0-T50.2 )
 | 
	| T46.6 | Antihyperlipidaemic and antiarteriosclerotic drugs 
 | 
	| T46.7 | Peripheral vasodilators Nicotinic acid (derivatives)
 
Excludes:
papaverine ( T44.3 )
 | 
	| T46.8 | Antivaricose drugs, including sclerosing agents 
 | 
	| T46.9 | Other and unspecified agents primarily affecting the cardiovascular system 
 |