Fentanyl Sublingual Spray and Fentanyl Citrate Intravenous (IV) in Opioid Naive Subjects

Maximum concentration

Time frame: 0 (pre-dose), 5, 10, 20, 30 and 40 minutes after dosing and at 1, 1.25, 1.5, 2, 4, 6, 8, 10, 12, 16, and 24 hours after dosing

Time to maximum concentration

Time frame: 0 (pre-dose), 5, 10, 20, 30 and 40 minutes after dosing and at 1, 1.25, 1.5, 2, 4, 6, 8, 10, 12, 16, and 24 hours after dosing

Area under the plasma concentration-time curve from 0 to the final time with a concentration at or above the limit of quantitation (LoQ)

Time frame: 0 (pre-dose), 5, 10, 20, 30 and 40 minutes after dosing and at 1, 1.25, 1.5, 2, 4, 6, 8, 10, 12, 16, and 24 hours after dosing

Area under the plasma concentration-time curve from 0 to infinity

Time frame: 0 (pre-dose), 5, 10, 20, 30 and 40 minutes after dosing and at 1, 1.25, 1.5, 2, 4, 6, 8, 10, 12, 16, and 24 hours after dosing

Apparent elimination rate constant in the terminal phase by noncompartmental analysis

Time frame: 0 (pre-dose), 5, 10, 20, 30 and 40 minutes after dosing and at 1, 1.25, 1.5, 2, 4, 6, 8, 10, 12, 16, and 24 hours after dosing

Elimination half-life

Time frame: 0 (pre-dose), 5, 10, 20, 30 and 40 minutes after dosing and at 1, 1.25, 1.5, 2, 4, 6, 8, 10, 12, 16, and 24 hours after dosing

Apparent oral clearance of drug following extravascular administration

Time frame: 0 (pre-dose), 5, 10, 20, 30 and 40 minutes after dosing and at 1, 1.25, 1.5, 2, 4, 6, 8, 10, 12, 16, and 24 hours after dosing

Volume of distribution during terminal phase following extravascular administration

Time frame: 0 (pre-dose), 5, 10, 20, 30 and 40 minutes after dosing and at 1, 1.25, 1.5, 2, 4, 6, 8, 10, 12, 16, and 24 hours after dosing