Pieces of varying sizes up to 15 cm or more in length,10 cm or more in breadth, and 3 mm to 1 cm thick. Shape is flat or slightly curved. Outer surface is smooth and grey-coloured. Inner surface is finely striated and brown. Fracture is short, revealing stratified nature of the bark. Taste is astringent.

Arjuna contains large quantities of calcium salts with smaller amount of aluminium and magnesium salts, 12% tannins, organic acids, a phytosterol, organic ester, colouring matter and sugar. From the benzene extract crystalline substances arjunine and arjunetine are isolated. Arjunine is acidic and its formula C21H32O3 and melts at 192C. Arjunetine is a derivative of hexahydrobenzoic acid and contains lactone ring and OH group. Arjuna also contains Arjunollic acid a triterpene saponin which is responsible for the diuretic property.

Uses in Livodin-12: • It is a hepatoprotective and provides a significant protection against the biochemical alteration in liver and has a tonic effect in case of liver cirrhosis. • It is also immunomodulator and antiviral agent. It prevents the viral infections in the animal body and improves its immune status.