药物的交叉过敏是指有一些患者对两种以上化学结构基本相似的药物均产生过敏的现象。临床上以抗菌素及磺胺类药物的交叉过敏较为常见,现作一简单介绍。一抗菌素各种抗菌素都可有过敏反应,它们之间化学结构类似者,常能形成交叉敏感现象。 1.青霉素之间:青霉素G最易引起过敏反应。由于它和半合成的新型青霉素如氨苄青霉素、羧苄青霉素、异噁唑类青霉素、甲氧苯青霉素吓、氧萘青霉素等具有共同的基本结构-6-氨基青霉烷酸,因此它们之间有交叉过敏。对青霉素G过敏者,各种新型青霉 Cross-allergy to drugs refers to the fact that some patients develop allergies to more than two drugs with similar chemical structures. Clinically, antibiotics and sulfa drugs cross-allergy is more common, now make a brief introduction. An antibiotic A variety of antibiotics can have an allergic reaction, similar chemical structure between them, often can form a cross-sensitive phenomenon. 1. Penicillin: penicillin G most likely to cause allergic reactions. Since it shares the common basic structure of 6-aminopenicillanic acid with semi-synthetic novel penicillins such as ampicillin, carbenicillin, isoxazole penicillin, methicillin scandral, Have cross allergies. Allergic to penicillin G, a variety of new Penicillium