Table 2.
Percentage of drug release at 8 h from different gel formulations (mean ± S.D.; n = 3).
| Factors | Weight percentage (% w/w) | Drug release percentage at 8 h (%) |
|---|---|---|
| Carbopol amount | 0.50 | 43.95 ± 0.60* |
| 1.00 | 32.47 ± 0.23 | |
| 2.00 | 17.79 ± 0.08 | |
| 5.00 | 12.48 ± 0.05 | |
|
| ||
| Triethanolamine amount | 1.00 | 66.42 ± 0.51 |
| 3.00 | 43.95 ± 0.60* | |
| 5.00 | 1.37 ± 0.00 | |
|
| ||
| Galantamine hydrobromide amount | 1.00 | 14.71 ± 0.04 |
| 3.00 | 43.95 ± 0.60* | |
| 5.00 | 97.94 ± 0.50 | |
|
| ||
| Propylene glycol amount | 0.00 | 1.35 ± 0.00 |
| 1.00 | 1.37 ± 0.01 | |
| 5.00 | 26.33 ± 0.24 | |
| 10.00 | 43.95 ± 0.60* | |
*denotes the repeated formulations, with the same composition.