哪些药物会引起痛风发作
随着生活方式的改变，饮食结构的变化，痛风患者越来越多。但也有不少痛风的发生与某些药物的使用密切相关，久用这些药物需定期化验血尿酸的浓度，及时调整药物的使用，预防痛风的发生。常见的可诱发痛风的药物包括：
利尿剂
呋塞米和氢氯噻嗪等利尿剂，以及含有利尿剂的降压药，这类药物会降低肾脏排尿酸的能力，引起尿酸的升高，从而引起或诱发痛风。
部分血管扩张剂
β受体阻滞剂如美托洛尔，钙离子拮抗剂如硝苯地平、氨氯地平等，都可使肾血流减少，尿酸排泄减少。
阿司匹林
阿司匹林对尿酸代谢具有双重作用。大剂量阿司匹林（>3克／天）可明显抑制肾小管对尿酸的重吸收，使尿酸排泄增多；中等剂量阿司匹林(1~2克／天)则以抑制肾小管排泄尿酸为主；虽然小剂量阿司匹林（<0.5克／天）对尿酸作用的研究不多，但临床已经发现75~325毫克／天用量的阿司匹林能损害老年人肾功能和尿酸清除能力，而小剂量阿司匹林已被心脑血管患者广泛应用，特别是老年人。因此，应该警惕剂量改变对老年人所造成的损害。痛风急性发作时，应避免应用阿司匹林。
抗结核药
结核患者久用吡嗪酰胺和乙胺丁醇而不合用利福平时，多数患者血尿酸升高，也常常诱发痛风。吡嗪酰胺和乙胺丁醇都会抑制尿酸的排出而升高血尿酸，但利福平对吡嗪酰胺引起的关节痛有较好的疗效，可能与利福平抑制尿酸的吸收、加速尿酸的排泄有关。
免疫抑制剂
典型的药物是环孢素。一些风湿免疫科的患者，以及接受器官移植且服用环孢素的患者也是痛风的高危人群，尤其肾功能不全的换心或换肾的患者更不容易控制尿酸。这是因为环孢素会减少尿酸的排出。
部分抗生素
喹诺酮类（如氧氟沙星、加替沙星等）、青霉素等抗生素大多由肾脏排泄，但喹诺酮类、青霉素等抗生素的排出多就会影响尿酸的排出，使体内尿酸水平升高。
. 烟酸是降脂药中常用的药物，它虽然具有良好的降脂作用，但它兼有明显的升高血尿酸的副作用。
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