%0 Journal Article %T Pharmacokinetic Interactions between Valproic Acid and Lorazepam (PIVOtAL Study): A Review of Site-Specific Practices %A Joane Y Tang %A Mary H H Ensom %A Tony K L Kiang %J Archive of "The Canadian Journal of Hospital Pharmacy". %D 2017 %X Coadministration of lorazepam and valproic acid is identified by tertiary references as causing a major drug interaction that requires therapy modification and dosage adjustments. The proposed mechanism involves inhibition of lorazepam glucuronidation via direct inhibition of uridine 5¡ä-diphosphate-glucuronosyltransferase enzymes by valproic acid. However, the clinical significance of this interaction is unclear %K valproic acid %K lorazepam %K pharmacokinetics %K drug-drug interaction %K uridine 5¡ä-diphosphate-glucuronosyltransferases acide valpro£¿que %K loraz¨¦pam %K pharmacocin¨¦tique %K interaction m¨¦dicament-m¨¦dicament %K uridine 5¡ä-diphosphate glucuronosyltransf¨¦rases %U https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5491192/