Rova (Drotaverine Hydrochloride) is a benzylisoquinoline derivative. It is a new highly potent synthetic antispasmodic drug which is capable of relieving spasms of various organs. Drotaverine Hydrochloride selectively inhibits the phosphodiesterase enzyme that leads to an increase of the cAMP level producing smooth muscle fibers. Drotaverine Hydrochloride has rapid onset of action, which is very advantageous in cases of acute painful spastic conditions. In addition to its spasmolytic and vasodilatory actions. Drotaverine Hydrochloride elicits a selective blockade of cardiac beta-receptors.