Cytotoxic, Virucidal, and Antiviral Activity of South American Plant and Algae Extracts

Table 2

CC₅₀ and SI calculated for each anti-HSV-1 extract.

Plant species	CC50^a (μg/mL)	SI^b
Psidium incanum	1756	14.89
Phyllanthus niruri	2542	42.37
Limonium brasiliense	848	4.58
Acyclovir	3190	70.9

^aCytotoxic concentration 50%.
^bSelectivity index. Ratio CC₅₀/EC₅₀.