Table 2.

Zembrin extract effect on HAM-D in healthy control subjects.

	Average HAM-D	SD	P value 1-tailed	Effect size: % change
Before Zembrin (N = 18)	1.67	1.9	P = 0.075	26.9% decrease on HAM-D
After Zembrin (N = 18)	1.22	1.9
Before placebo (N = 19)	1.95	2.1	P = 0.289	13.8% decrease on HAM-D
After placebo (N = 19)	1.68	1.5