Piper longum L. is used as drug in Unani, Ayurvedic and Siddha System of medicine. The drug (dried fruit) is aromatic, stomachic, carminative, expectorant, digestive and antiseptic and also used as spice in commerce. Very few, clinical studies have been conducted on this drug. The present studies deal with detailed pharmacognostic studies and reviews related

information on this drug.