Figure 3From: The Effect of Transdermal Delivery of Fentanyl on Activity in Growing PigsSerum fentanyl concentrations (ng/mL) in individual pigs treated with a fentanyl patch with (treatment A/F) and without isoflurane anaesthesia (treatment F). Values obtained 1, 6, 12, 24, 48 and 72 hours after the patch application are shown. (n = 7)Back to article page