IC50 values for the alkaloids
| Alkaloid | IC50 Value | |
|---|---|---|
| With Preincubation | Without Preincubation | |
| Bulbocapnine | 8.4 ± 1.4 μM (moderately potent) | 17.3 ± 6.8 μM (weak) |
| Canadine | 0.29 ± 0.07 μM (potent) | 2.2 ± 0.94 μM (moderately potent) |
| Protopine | 1.8 ± 0.33 μM (moderately potent) | 2.6 ± 0.48 μM (moderately potent) |