»Powdered Rauwolfia Serpentina is Rauwolfia Serpentina reduced to a fine or a very fine powder,and adjusted,if necessary,to conform to the requirements for reserpine-rescinnamine group alkaloids by admixture with lactose or starch or with a powdered rauwolfia serpentina containing a higher or lower content of these alkaloids.It contains not less than 0.15percent and not more than 0.20percent of reserpine-rescinnamine group alkaloids,calculated as reserpine.