著者

小合 由起 砂金 信義 太田 隆文 宇留野 強

出版者

公益社団法人日本薬学会

雑誌

藥學雜誌 (ISSN:00316903)

巻号頁・発行日

vol.125, no.12, pp.1009-1011, 2005-12-01

被引用文献数

7

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This study aimed to examine the effects of banana juice on levodopa bioavailability in rats. When a levodopa preparation (EC-Doparl tablets) was orally administered with banana juice made by mixing with a fresh banana and water, there were significant decreases in C_<max>(17.4±2.5vs.8.6±3.1μg/ml;α=0.05) and AUC(1882.8±49.2vs.933.5±286.6μg・min/ml;α=0.05) for levodopa. On the other hand, administration of the levodopa preparation with a commercial beverage containing 10% banana juice resulted in no significant change in C_<max> or AUC. These results indicate that concomitant intake of levodopa preparations with banana juice, but not with a commercial banana beverage, may cause a drug-food interaction reducing levodopa bioavailability, and we should pay attention to such interactions during levodopa therapy for patients with Parkinson's disease.