Stability of bupivacaine hydrochloride and fentanyl citrate in 0.9% NaCl, 25°C
| Sample | t (h) | PIS | PBup | Pfent | PBup/PIS | %B | Pfent/PIS | %F |
|---|---|---|---|---|---|---|---|---|
| 1 | 0 | 888999 | 30473943 | 171402 | 342789 | 100.00% | 0.1928 | 100.00% |
| 2 | 1 | 870079 | 29416332 | 164967 | 338088 | 98.63% | 0.1896 | 98.34% |
| 3 | 6.5 | 785461 | 27937316 | 154065 | 355680 | 103.76% | 0.1961 | 101.73% |
| 4 | 23 | 862758 | 29865464 | 167883 | 346163 | 100.98% | 0.1946 | 100.93% |
| 5 | 32.5 | 544133 | 19132839 | 106660 | 351621 | 102.58% | 0.1960 | 101.67% |
| 6 | 47 | 889441 | 30055613 | 166951 | 337916 | 98.58% | 0.1877 | 97.35% |
| 7 | 51.5 | 605950 | 21098765 | 118155 | 348193 | 101.58% | 0.1950 | 101.13% |
| 8 | 72 | 881896 | 29663404 | 166695 | 336359 | 98.12% | 0.1890 | 98.04% |
| Bupivacaine hydrochloride | Fentanyl citrate | |||||||
| Average amount | 100.53% | 99.89% | ||||||
| SD | 2.05 | 1.75 | ||||||