Increased frequency of angina attacks caused by switching a brand-name vasodilator to a generic vasodilator in patients with vasospastic angina:Two case reports  

作　　者：Remi Goto-Semba Yuichi Fujii Tomohiro Ueda Chikage Oshita Hiroki Teragawa 

机构地区：[1]Department of Education and Training, JR Hiroshima Hospital [2]Department of Cardiovascular Medicine, JR Hiroshima Hospital

出　　处：《World Journal of Cardiology》2018年第3期15-20,共6页世界心脏病学杂志（英文版）（电子版）

摘　　要：It is well known that calcium channel blockers(CCBs) are the first line of therapy for vasospastic angina(VSA). Here, we report two cases of VSA with an increase in the frequency of angina attacks after switching from a brand-name to a generic CCB. In both cases, angina recurred upon switching from a brand-name CCB to a generic CCB during follow-up. The patients' condition improved upon switching back to the original CCB. Both cases involved a high severity of VSA, based on the results of spasm provocation testing. These findings suggest that, in some patients with severe VSA, the frequency of angina attacks increases when switching from a brand-name CCB to a generic CCB. Cardiologists should consider this factor when prescribing drugs for angina.It is well known that calcium channel blockers(CCBs) are the first line of therapy for vasospastic angina(VSA). Here, we report two cases of VSA with an increase in the frequency of angina attacks after switching from a brand-name to a generic CCB. In both cases, angina recurred upon switching from a brand-name CCB to a generic CCB during follow-up. The patients' condition improved upon switching back to the original CCB. Both cases involved a high severity of VSA, based on the results of spasm provocation testing. These findings suggest that, in some patients with severe VSA, the frequency of angina attacks increases when switching from a brand-name CCB to a generic CCB. Cardiologists should consider this factor when prescribing drugs for angina.

关 键 词：Vasospastic ANGINA ACETYLCHOLINE Brandname DRUGS GENERIC DRUGS Refractory CHEST pain 

分 类 号：R[医药卫生]