| DBP (mmHg) | Labetalol | Hydralazine | T-test | P-value |
| On Admission | 122.40 ± 15.63 | 121.00 ± 17.85 | 0.417 | 0.677 |
| After First Dose | 100.52 ± 14.49 | 110.92 ± 14.85 | −3.543 | 0.001 |
| After Second Dose | 94.00 ± 5.65 | 106.22 ± 13.36 | −2.938 | 0.005 |
| After Third Dose |
| 103.68 ± 14.22 |
|
|
| After Fourth Dose |
| 118.33 ± 17.22 |
|
|
| After Fifth Dose |
| 106.00 ± 0.00 |
|
|