Isobolographic analysis of epinephrine with bupivacaine, dextromethorphan, 3-methoxymorphinan, or dextrorphan on infiltrative anesthesia in rats: dose-response studies

doi:10.1016/j.rapm.2007.08.012

Chia Nan University of Pharmacy & Science Institutional Repository > 藥理學院 > 藥學系(所) > 期刊論文 > Item 310902800/21727

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標題:	Isobolographic analysis of epinephrine with bupivacaine, dextromethorphan, 3-methoxymorphinan, or dextrorphan on infiltrative anesthesia in rats: dose-response studies
作者:	Yu-Wen Chen Kuo-Sheng Liu Jhi-Joung Wang Willy Chou Ching-Hsia Hung
貢獻者:	藥物科技研究所
關鍵字:	Epinephrine Cutaneous analgesia Bupivacaine Dextromethorphan 3-Methoxymorphinan Dextrorphan Local anesthetics Isobolographic analysis
日期:	2008-03
上傳時間:	2009-10-13 09:29:31 (UTC+8)
出版者:	Elsevier
摘要:	Background and Objectives: The aims of this study were to establish the potencies of epinephrine, bupivacaine, dextromethorphan, 3-methoxymorphinan, and dextrorphan and evaluate interactions of epinephrine with bupivacaine, dextromethorphan, 3-methoxymorphinan, or dextrorphan as an infiltrative anesthetic. Bupivacaine, a common and long-acting local anesthetic, was used as control. Methods: Dose-dependent responses of epinephrine, dextromethorphan, 3-methoxymorphinan, and dextrorphan on cutaneous analgesia were compared with bupivacaine in rats. The interactions of drugs were evaluated via an isobolographic analysis. Results: We found that epinephrine, bupivacaine, dextromethorphan, 3-methoxymorphinan, and dextrorphan produced a dose-dependent local anesthetic effect as infiltrative cutaneous analgesia. Relative potencies were epinephrine > bupivacaine > dextromethorphan > 3-methoxymorphinan > dextrorphan (P < .01 for each comparison). Coadministration of bupivacaine with epinephrine produced a synergistic effect, and coadministration of dextromethorphan, 3-methoxymorphinan, or dextrorphan with epinephrine produced an additive effect. Conclusions: Epinephrine, dextromethorphan, 3-methoxymorphinan, and dextrorphan are known to have local anesthetic effects as infiltrative cutaneous analgesia in rats. Epinephrine increased the potency of bupivacaine, but not dextromethorphan, 3-methoxymorphinan, or dextrorphan as an infiltrative anesthetic. The cutaneous analgesic effects of adding epinephrine to dextromethorphan, 3-methoxymorphinan, or dextrorphan, are similar to combinations of 2 local anesthetics.
關聯:	Regional Anesthesia and Pain Medicine 33(2)：p.115-121
显示于类别:	[藥學系(所)] 期刊論文

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