C04APeripheral Vasodilators↑ C04Subgroups2-amino-1-phenylethanol derivativesC04AAImidazoline derivativesC04ABNicotinic acid and derivativesC04ACPurine derivativesC04ADErgot alkaloidsC04AEEnzymesC04AFOther peripheral vasodilatorsC04AXSubstancespentoxifyllineC04AD03tolazolineC04AB02nicergolineC04AE02phenoxybenzamineC04AX02phentolamineC04AB01vincamineC04AX07