Hepatic and extrahepatic glucuronidation of lorazepam in the dog
John F. Gerkens, Paul V. Desmond, Steven Schenker, Robert A. Branch – 1 July 1981 – The pharmacokinetic disposition of lorazepam was investigated in sham‐operated anesthetized dogs, dogs with hepatic devascularization, and dogs with total splanchnic devascularization following i.v. administration of 0.3 mg per kg of the drug. In sham‐operated dogs, lorazepam distribution was extensive (100 ± 15.2 liters) and clearance approximated expected liver blood flow (971 ± 91 ml per min). Lorazepam glucuronide levels in plasma rose rapidly in the first hour and reached a plateau by 5 hr.