Tianma Wan (Chinese: 天麻丸) is a blackish-brown pill used in Traditional Chinese medicine to "relieve rheumatism, alleviate muscle contracture, remove obstructions from collaterals and channels, promote blood circulation and relieve pain". It is slightly aromatic and tastes slightly sweet and bitter. It is used where there is "deficiency of liver and kidney, stagnation of wind-damp marked by muscle contracture and numbness of the limbs, aching in the loins and legs". The binding agent of the pill is honey.
References
Tianma Wan Wikipedia(Text) CC BY-SA