药瘾是汉语词汇，读音yào yǐn，解释为药物依赖。
根据记录，他装有心脏起搏器，而且曾与止疼药瘾搏斗。
He also has a pacemaker, and once battled an addiction to painkillers, according to the memorandum.
目的：探讨静脉药瘾者心内膜炎(eida)的临床特点。
Objective: To explore the clinical characteristic of endocarditis in intravenous drug abusers (EIDA).
目的了解静脉药瘾者丙型肝炎病毒（HCV）感染状况及其影响因素。
Objective To assess the extent of HCV infection among intravenous drug users (IVDU) and the relevant factors.
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