Urea and creatinine are toxic in blood. Increased level of urea and creatinine in blood is one indicator of renal disfunction, one of which is caused by urolithiasis. Urolithiasis treatment with surgery and high-power laser is expensive and has high risk of re-formed kidney stones, so many people turn to use alternative medicine such as herbal medicine. Pelawan (Tristaniopsis obovata R.Br) is o…