I made a tincture of this to treat stress and sadness. Very nice! I take about a 1/4 tsp of the tinc in a small amount of warm coffee orco.c. It totally gets me out of my funk. I get a renewed sense hope and Thom positively in small amounts this is a very effective medicine. It does not interfere with staying focused. I just wish it lasted longer. Also it takes bout an hr to kick in.