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Table 1 Drug Concentrations Targeted

From: Investigation of the potentiation of the analgesic effects of fentanyl by ketamine in humans: a double-blinded, randomised, placebo controlled, crossover study of experimental pain[ISRCTN83088383]

 

Baseline

Concentration 1

Concentration 2

Concentration 3

Concentration 4

Placebo (saline)

-

-

-

-

-

Propofol (μg/ml)

0.00

0.15

0.30

0.60

0.90

Ketamine (ng/ml)

0.00

15.00

30.00

60.00

120.00

Fentanyl (ng/ml)

0.00

0.20

0.40

0.80

1.20

Ketamine (ng/ml) &

0.00

30.00

30.00

30.00

30.00

Fentanyl (ng/ml)

0.00

0.20

0.40

0.80

1.20