Table 1
Plasma morphine concentrations during the 14-day treatment period
Day
2
4
7
10
14
Plasma morphine (ng/ml)
107 ± 6.58
127 ± 9.89
94 ± 14.1
119 ± 10.4
92.3 ± 9.41
Values are mean ± S.E. (n = 11).