| Probably lethal oral dose (human) | |||
| Toxicity Index | Terms | Dose (mg/kg) | For 70 Kg weight person |
| 6 | Super toxic | Less than 5 | 1 grain (a pinch less than 7 drops) |
| 5 | Extremely toxic | 5 to 50 | 4 mL |
| 4 | Very toxic | 50 to 500 | 30 mL |
| 3 | Moderately toxic | 500 to 5000 | 30 to 600 mL |
| 2 | Slightly toxic | 5000 to 15,000 | 600 to 1200 mL |
| 1 | Almost not toxic | More than 15,000 | More than 1200 mL |