NicardipineDihydropyridinesCalcium Channel BlockersAntihypertensive AgentsAmlodipineHypertensionNifedipineBlood PressureVasodilator AgentsSingle-Blind MethodDiltiazemMedicine, Chinese TraditionalFlunarizineVerapamilIndividualized MedicineInternal MedicineNuclear MedicineMedicine, TraditionalMedicine, Kampo