^a Diluted in sodium chloride 0.9%.

^b Tested with fentanyl citrate (JN) 0.01 mg/mL.

^c Tested with tetracaine HCl (SW) 2 mg/mL.

^d Tested with bupivacaine HCl (SW) 1.5 mg/mL.

^e Tested with morphine sulfate (ES) 0.2 mg/mL.

^f Tested with lidocaine HCl (AST) 2 mg/mL.

^g Tested with clonidine HCl (BI) 0.03 mg/mL.