The Rauwolfia constituent ajmaline not only lowers blood pressure, but also has a potent anti arrhythmic effect which used to treat high blood pressure (hypertension). Rauwolfia work by controlling nerve impulses along with certain nerve pathways. As a result, they act on the heart and blood vessels to lower blood pressure.
It is used in insomnia and irritative conditions of the central nervous system. It causes depletion of catecholamines at the central and peripheral level and depletion of Serotonin at the central level.
Root is a valuable remedy for dysentery and painful affections of bowel.