What is the recommended dosage of Western skullcap?

Tea: 1 - 2 tsp (5 -10 g) dried leaves with 1 cup boiling water, steep for 10 -15 minutes, 2 to 3 cups daily. Tincture: .5 - 1 tsp (2 - 4 ml) tincture with 8 oz warm water. And more . . .