Rutecarpine metabolism is complex and proceeds along several routes, primarily involving the addition of a single hydroxyl group by CYP3A4. Six monohydroxylated and four dihydroxylated metabolites have been identified. To a much lesser extent, rutecarpine may be metabolized by CYP2C9 and CYP1A2, according to liver microsome studies.[7]
Supplementation
Rutecarpine has been shown to decrease the overall bioavailability of caffeine in rats by up to 80 percent,[8] likely through induction of enzymes CYP1A2 and CYP2E1.[9]
References
^Moon, T. C.; Murakami, M.; Kudo, I.; Son, K. H.; Kim, H. P.; Kang, S. S.; Chang, H. W. (1999). "A new class of COX-2 inhibitor, rutaecarpine from Evodia rutaecarpa". Inflammation Research. 48 (12): 621–625. doi:10.1007/s000110050512. PMID10669112. S2CID19555209.
^Zhang, Fang-Liang; He, Xin; Zhai, Yi-Ran; He, Li-Na; Zhang, Si-Chao; Wang, Li-Li; Yang, Ai-Hong; An, Li-Jun (2 November 2015). "Mechanism-based inhibition of CYPs and RMs-induced hepatoxicity by rutaecarpine". Xenobiotica. 45 (11): 978–989. doi:10.3109/00498254.2015.1038742. PMID26053557. S2CID6293291.
^Ueng, Yune-Fang; Jan, Woan-Ching; Lin, Lie-Chwen; Chen, Ta-Liang; Guengerich, F. Peter; Chen, Chieh-Fu (1 March 2002). "The Alkaloid Rutaecarpine Is a Selective Inhibitor of Cytochrome P450 1A in Mouse and Human Liver Microsomes". Drug Metabolism and Disposition. 30 (3): 349–353. doi:10.1124/dmd.30.3.349. PMID11854157.
^Ueng, Yune-Fang; Wang, Jong-Jing; Lin, Lie-Chwen; Park, Sang Shin; Chen, Chieh-Fu (November 2001). "Induction of cytochrome P450-dependent monooxygenase in mouse liver and kidney by rutaecarpine, an alkaloid of the herbal drug Evodia rutaecarpa". Life Sciences. 70 (2): 207–217. doi:10.1016/S0024-3205(01)01390-X. PMID11787945.
^Noh, Keumhan; Seo, Young Min; Lee, Sang Kyu; Bista, Sudeep R.; Kang, Mi Jeong; Jahng, Yurngdong; Kim, Eunyoung; Kang, Wonku; Jeong, Tae Cheon (January 2011). "Effects of rutaecarpine on the metabolism and urinary excretion of caffeine in rats". Archives of Pharmacal Research. 34 (1): 119–125. doi:10.1007/s12272-011-0114-3. PMID21468923. S2CID44752343.