PHARMACOKINETICS OF LIDOCAINE AND BUPIVACAINE AND STABLE ISOTOPE LABELED ANALOGS - A STUDY IN HEALTHY-VOLUNTEERS
PHARMACOKINETICS OF LIDOCAINE AND BUPIVACAINE AND STABLE ISOTOPE LABELED ANALOGS - A STUDY IN HEALTHY-VOLUNTEERS
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DOI:
10.1002/bod.2510090109
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发表时间:
1988-01-01
影响因子:
2.1
通讯作者:
BREIMER, DD
中科院分区:
文献类型:
--
作者:
BURM, AGL;DEBOER, AG;BREIMER, DD
The pharmacokinetics of lidocaine and bupivacaine and tri-deuteromethyl-labelled lidocaine and bupivacaine were investigated in healthy volunteers. The deuterium-labelled and the unlabelled form of the drug to be investigated were simultaneously infused in 10 min. Plasma concentrations were determined using a combination of capillary gas chromatography and mass fragmentography. Bi-exponential functions were fitted to the plasma concentration-time data. The mean distribution and elimination half-lives were 8.4 .+-. 5.9 min and 96 .+-. min for lidocaine, 9.2 .+-. 7.0 min and 98 .+-. 27 min for deuterium-labelled lidocaine, 15.3 .+-. 9.9 min and 111 .+-. 32 min forbupivacaine, and 15.2 .+-. 10.9 min and 109 .+-. 32 min for deuterium-labelled bupivarcaine, respectively. The mean volumes of the central compartment and mean steady state volumes of distribution were: lidocaine 37 .+-. 151 and 97 .+-. 201, deuterium-labelled lidocaine 39 .+-. 161 and 98 .+-. 181, bupivacaine 27 .+-. 111 and 66 .+-. 231 and deuterium-labelled bupivacaine 28 .+-. 121, and 65 .+-. 221, respectively. The respective mean plasma clearances were 0.88 .+-. 0.181 min-1, 0.87 .+-. 0.181 min-1, 0.61 .+-. 0.151 min-1, and 0.62 .+-. 0.171 min-1. The results of the study indicate that substitution of a deuterated methyl group does not alter the pharmacokinetics of lidocaine and bupivacaine in healthy sujects.