Nilavembu (chireta) is one of the frequently used herbal remedies for fever, seasonal fever such as dengue, malaria. It has chemical compositions such as flavonoids, glycosides, and many more. The chemical properties play a major role as it acts as an anti-pyretic, anti-analgesic and anti-inflammatory. This nilavembu (chireta) kudineer also known earlier by Sangam age people the word nilavembu got included in siddhar song: