Bush that can reach 1.5m high, native to tropical Asia and Australia, much cultivated in Indonesia and Vietnam. It belongs to the family Lamiaceae (Labiata) and the parts used in the plant are the leaves and ends of the dry stalks. Its main constituents are potassium salts, lipophilic flavones (sinensetin, euparorin, escutelaraine, salvigenin) and flavonic glycosides. Potassium salts, flavonoids and saponosides increase diuresis with elimination of chlorides and nitrogenated catabolites. It has anti-inflammatory and hypocholesterolemic properties. Java tea is traditionally used in urinary tract problems in which an increase in diuresis is desired.
If you wish, you can find more information about Java´s tea in the scientific studies and literature available here:
Chin Jin H et al. (2008). Toxicity study of Orthosiphon stamineus Benth (Misai Kucing) on Sprague Dawley rats. Tropical Biomedicine 25 (1): 9-16.
Olah NK et al. (2003). Phytochemical and pharmacological studies on Orthosiphon stamineus Benth. (Lamiaceae) hydroalcoholic extracts. Journal of Pharmaceutical and Biomedical Analisys 33 (1): 117-123.
Arafat OM et al. (2008). Studies on diuretic and hypouricemic effects of Orthosiphon stamineus methanol extracts in rats. Journal of Ethnopharmacology 118(3):354-360.
Adam Y et al. (2009). Diuretic properties of Orthosiphon stamineus Benth. Journal of Ethnopharmacology 124 (1): 154-158.
Mohamed EA et al. (2011). Toxicity evaluation of a standardised 50% ethanol extract of Orthosiphon stamineus. Journal of Ethnopharmacology 133 (2): 358-363.
Muhammad H (2011) et al. (2011). Evaluation of the genotoxicity of Orthosiphon stamineus aqueous extract. Journal of Ethnopharmacology 133 (2): 647-653.
Cunha AP, Silva AP, Roque OR (2012). Plantas e Produtos Vegetais em Fitoterapia, 4ª Edição, Fundação Calouste Gulbenkian Serviço de Educação e Bolsas, 228-229.
Cunha AP, Roque OR (2011). Plantas Medicinais da Farmacopeia Portuguesa, 2ª Edição, Fundação Calouste Gulbenkian Serviço de Educação e Bolsas, 213-217.
Physicians Desk Reference for Herbal Medicines (2000), 2nd Edition, Thomson Medical Economics, 434-435.