Table 2. The EC50 values of Ursolic acid and doxorubicin in A549 cells.
| Drugs | EC50 (μM) | Notes |
|---|---|---|
| Ursolic acid | 39 | |
| Doxorubicin | 57 | |
| Doxorubicin (in combination with 25 μM Ursolic acid | 6 | Combination index = 0.7 |
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