title: Plasma concentrations of lidocaine in dogs following lidocaine patch application.
abstract: Transdermal absorption of lidocaine was determined by measuring plasma lidocaine concentrations following skin application of 5% lidocaine patches. Two lidocaine patches were placed on the ventral abdominal midline of seven dogs for 72 hours. Lidocaine was detectable in plasma 12 hours after patch application, and it reached steady-state concentrations between 24 and 48 hours. Plasma lidocaine levels decreased dramatically at 60 hours post-application. Low plasma lidocaine concentrations remained for 6 hours after patch removal. No clinically significant side effects were noted.
authors.affiliation: Department of Veterinary Clinical Sciences, School of Veterinary Medicine, Purdue University, West Lafayette, Indiana 47907, USA.
authors.forename: Jeff
authors.initials: J
authors.lastname: Ko
authors.forename: Ann
authors.initials: A
authors.lastname: Weil
authors.forename: Lara
authors.initials: L
authors.lastname: Maxwell
authors.forename: Takashi
authors.initials: T
authors.lastname: Kitao
authors.forename: Todd
authors.initials: T
authors.lastname: Haydon
mesh_terms: D000279:Administration, Cutaneous; D000704:Analysis of Variance; D000779:Anesthetics, Local / Q000008:administration & dosage / Q000009:adverse effects / Q000097:blood / Q000493:pharmacokinetics*; D000818:Animals; D019540:Area Under Curve; D004285:Dogs / Q000097:blood* / Q000378:metabolism; D005260:Female; D008012:Lidocaine / Q000008:administration & dosage / Q000009:adverse effects / Q000097:blood / Q000493:pharmacokinetics*; D012869:Skin Absorption