Gotu Kola consists of the dried above-ground parts of Centella asiatica (L.) Urban. (syn. Hydrocotyle asiatica L.) [Fam. Apiaceae]. Chemical constituents include saponin glycosides, notably asiaticoside, madecassoside, brahmoside, and brahmissoside. The concentration of triterpenes in gotu kola can vary between 1.1% and 8%, with most samples yeilding a concentration between 2.2% and 3.4%. Extracts (standardized to asiaticosides) contain concentrations of asiatic acid 29% to 30%, madecassic acid 29% to 30%, asiaticoside 40%, and madecassoside 1% to 2%.
Average dose: 0.5g. to 1g. three times daily. Powder: 0.5g. to 1.5g. Liquid extract: 1:1 dose: 2ml. to 4ml. (0.5 tsp. to 1tsp.). Standardized extracts: 60mg. to 120mg. daily.