Table 1. Mean phenothiazine-induced cytotoxicity across the lung cancer cell line panel.

Cell line	Cytotoxicity (%) at 10 μM
	cisFPX	PZ	CPZ	TFPZ	FPZ	TFP	Mean	S.D.
SCLC
H69	43	19	82	61	58	57	53	21
H82	85	43	90	80	100	100	83	21
H592	59	40	63	59	69	57	58	10
U-1285	93	84	100	100	100	100	96	7
U-1568	20	22	40	30	14	15	24	10
U-1690	10	20	48	23	29	36	28	13
U-1906	50	50	95	93	76	74	73	20
U-2020	75	49	89	85	94	96	81	18
NSCLC
A549	25	0	12	0	6	2	8	10
H125	9	44	43	43	0	0	23	22
H1299	0	3	52	13	0	0	11	21
H157	44	25	30	33	37	44	36	8
H23	1	8	17	5	7	8	8	5
H661	20	21	29	13	19	10	19	7
U-1752	32	37	40	28	31	32	33	4
U-1810	28	14	23	9	20	9	17	8

The cytotoxicity values were calculated by the following formula: cytotoxicity=100%−viability (%), as analyzed by MTT assay