3.2.2. Determination of Median Lethal Dose (LD50)
Oral administration of (70%) alcoholic extract of P. dichotomus in doses up to 4000 mg/Kg b.
wt. failed to kill mice within 24 h. The tested extract is considered highly safe, since substances
possessing LD50 higher than 50 mg/Kg b.wt. are considered non toxic [27].