|
地高辛片与盐酸胺碘酮片
地高辛与胺碘酮合用,前者血浓度升高,可能导致地高辛中毒。
有人认为,胺碘酮减少地高辛的肾脏清除及非肾脏清除,可能与以下因素有关。地高辛肾小管分泌的减少[4,6,7],胺碘酮置换已与组织蛋白结合的地高辛[3,4,10]。这一作用可能是胺碘酮的直接作用或通过甲状腺素介导,长期胺碘酮治疗可导致其代谢发生变化[6]。胺碘酮也可导致甲状腺功能低下,而甲状腺功能低下时,地高辛血浓度则可升高[1]。但也有研究认为,甲状腺功能的变化与地高辛药动学的改变并无数量上的相关性[2],且另有研究则认为,并不通过直接竞争与钠-钾ATP酶的结合而置换地高辛[5,14]。
建议:地高辛与胺碘酮合用期间,应当密切监测地高辛的血浓度,并注意观察有无地高辛中毒的症状和体征出现。地高辛的剂量可能需要调整[4~6,9,10]。
参考文献:1、Ben-chetrit, E., and others: Case report: amiodarone-associated hypothyroidism—a possible cause of digoxin intoxication, Am. J. Med. Sci. 289, 114, 1985.
2、Fenster, P. E., and others: Pharmacokinetic evaluation of the digoxin-amiodarone interaction, J. Am. Coll. Cardiol. 5: 108, 1985.
3、Mingardi, G.: Amiodarone and plasma digoxin levels (letter), Lancet 1: 1238, 1984.
4、Koren, G., and others: Digoxin toxicity associated with amiodarone therapy in children, J. Pediatr. 104: 467, 1984.
5、Oetgen, W. J., and others: Amiodarone-digoxin interaction-clinical and experimental observations, Chest 86: 75, 1984.
6、Nademanee, K., and others: Amiodarone-digoxin interaction: clinical significance, time course of development, potential pharmacokinetic mechanisms and therapeutic implications, J. Am. Coll. Cardiol. 4: 111, 1984.
7、Douste-Blazy P. H., and others: Influence of amiodarone on plasma and urine digoxin concentrations (letter), Lancet 1: 905, 1984.
8、Maragno, I., and others: Influence of amiodarone on oral digoxin bioavailability in healthy volunteers, Int. J. Clin. Pharmacol. Res. 4: 149, 1984.
9、Nager, G. and Nager, F.: Interaction zwischen amiodaron und digoxin, Schweiz. Med. Wochenschr. 113: 1727, 1983.
10、Moysey, J. O., and others: Amiodarone increases plasma digoxin concentrations, Br. Med. J. 282:272, 1981.
11、Klein, H. O., and others: Asystole produced by the combination of amiodarone and digoxin, Am. Heart J. 113: 399, 1987.
12、Achilli, A. and Serra, N.: Amiodarone increases plasma digoxin concentrations (letter), Br. Med. J. 282, 1630, 1981.
13、Nicholls, D. P., and others: Use of amiodarone and digoxin specific FAB antibodies in digoxin overdosager, Br. Heart J 53: 462, 1985.
14、Maheswaren, R., and others: Massive digoxin overdoses:successful treatment with intravenous amiodarone, Br. Med. J 287: 392, 1983.
15、Wilkins. M. R., and others: Amiodarone and plasma digoxin levels (letter), Lancet 1: 1180, 1984.
16、Marcus, F. I.: Commentary: digoxin-amiodarone-hypothyroidism interaction, Am. J. Med. Sci. 289, 117, 1985. |
|