Table 3. In Vitro Cytotoxic Activities of p-SC6, Harmala Alkaloid-Rich Fraction, and H/p-SC6 Nanocapsules against SKOV-3, MCF-7, and Human Skin Fibroblasts^a.

	in vitro cytotoxic activity (IC50 in μg/mL)
cells	p-SC6	harmala alkaloid-rich fraction (positive control)	H/p-SC6
SKOV-3	>300	6.7 ± 1.6	5 ± 1.3
MCF-7	>220	6.7 ± 0.7	2.3 ± 1.1
human skin fibroblasts	>300	4.6 ± 1.5	>300

^aThe treatment period was 48 h. Data represent the mean ± standard deviation of triplicate.