Table 1.
Sample, mean (SD) | Mean (± SD) bromfenac equivalents in μg eq/g
|
|||||||||
---|---|---|---|---|---|---|---|---|---|---|
1 hour
|
2 hours
|
4 hours
|
8 hours
|
12 hours
|
||||||
0.07%, pH 7.8 | 0.09%, pH 8.3 | 0.07%, pH 7.8 | 0.09%, pH 8.3 | 0.07%, pH 7.8 | 0.09%, pH 8.3 | 0.07%, pH 7.8 | 0.09%, pH 8.3 | 0.07%, pH 7.8 | 0.09%, pH 8.3 | |
Aqueous humor | 0.048 | 0.051 | 0.090 | 0.137 | 0.038 | 0.052 | 0.018 | 0.018 | 0.011 | 0.010 |
(0.024) | (0.017) | (0.024) | (0.063) | (0.011) | (0.021) | (0.004) | (0.015) | (0.003) | (0.005) | |
Vitreous humor | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.001 |
(0.000) | (0.000) | (0.000) | (0.000) | (0.000) | (0.000) | (0.000) | (0.000) | (0.000) | (0.000) | |
Iris/ciliary body | 0.081 | 0.078 | 0.110 | 0.083 | 0.048 | 0.061 | 0.029 | 0.034 | 0.018 | 0.022 |
(0.037) | (0.027) | (0.044) | (0.013) | (0.005) | (0.016) | (0.013) | (0.017) | (0.001) | (0.009) | |
Lens | 0.001 | 0.002 | 0.003 | 0.002 | 0.002 | 0.002 | 0.002 | 0.002 | 0.002 | 0.003 |
(0.000) | (0.001) | (0.001) | (0.001) | (0.000) | (0.000) | (0.001) | (0.002) | (0.000) | (0.003) | |
Retina | 0.013 | 0.018 | 0.010 | 0.015 | 0.006 | 0.010 | 0.002 | 0.002 | 0.003 | 0.002 |
(0.005) | (0.005) | (0.002) | (0.003) | (0.001) | (0.004) | (0.000) | (0.001) | (0.004) | (0.001) | |
Choroid | 0.045 | 0.058 | 0.062 | 0.083 | 0.035 | 0.043 | 0.011 | 0.010 | 0.008 | 0.008 |
(0.012) | (0.010) | (0.011) | (0.030) | (0.007) | (0.022) | (0.004) | (0.004) | (0.002) | (0.002) | |
Sclera | 0.595 | 0.346 | 0.451 | 0.302 | 0.170 | 0.220 | 0.058 | 0.026 | 0.067 | 0.039 |
(0.156) | (0.134) | (0.028) | (0.006) | (0.026) | (0.160) | (0.019) | (0.020) | (0.045) | (0.015) | |
Total | 0.783 | 0.553 | 0.726 | 0.623 | 0.300 | 0.388 | 0.121 | 0.092 | 0.109 | 0.085 |
(0.231) | (0.186) | (0.088) | (0.080) | (0.048) | (0.218) | (0.005) | (0.058) | (0.043) | (0.031) |
Notes: N=15 for each treatment, three rabbits per time point. All differences between formulations were statistically insignificant at all time points with the exception of the 2-hour scleral drug level (P<0.001). All differences between formulations in total drug levels were statistically insignificant (P>0.20) using a Student’s t-test, without correction for multiple comparisons.
Abbreviation: SD, standard deviation.