Table 5.
Accelerated stability of the selected VRC-S tablet (F4)
| Time (months) | VRC content (%) | Dissolution rate (%) | Degradation products (%)
|
|
|---|---|---|---|---|
| Major peak | Total peaks | |||
|
| ||||
| 0 | 99.4±0.9 | 93.7±3.7 | ND | ND |
| 3 | 99.9±0.7 | 93.8±4.1 | 0.12 | 0.38 |
| 6 | 100.4±1.4 | 94.1±3.5 | 0.15 | 0.38 |
Note: Acceptance criteria were set for drug contents of 95%–105%, dissolution rate of >85% in 30 minutes, and degradation products of <0.5% for the major peak and 2.0% for the total peaks in the relative peak area.
Abbreviations: ND, not detected; VRC, varenicline; VRC-S, varenicline salicylate.