Table 2.
The 14 herbs used most often for Chinese herbal preparations in the included 29 RCTs.
| English herbal name (Chinese pinyin) | Number of occurrences in 29 herbal preparations | Frequency of use (%) |
|---|---|---|
| Astragalus (Huang Qi) | 22 | 75.86 |
| Salvia miltiorrhiza (Dan Shen) | 15 | 51.72 |
| Poria (Fuling) | 10 | 34.48 |
| Rhizoma Dioscoreae Oppositae (Shan Yao) | 9 | 31.03 |
| Rehmannia Root (Sheng Di Huang) | 7 | 24.14 |
| Fructus Macrocarpii (Shan Zhu Yu) | 7 | 24.14 |
| Rhizoma Polygonati Sibirici (Huang Jing) | 7 | 24.14 |
| Rhizoma Alismatis (Ze Xie) | 7 | 24.14 |
| Radix Rehmanniae preparata (Shu Di Huang) | 6 | 20.69 |
| Herba Leonuri Japonici (Yi Mu Cao) | 6 | 20.69 |
| Radix et Rhizoma Rhei Palmati (Da Huang) | 6 | 20.69 |
| Rhizoma Chuanxiong (Chuan Xiong) | 5 | 17.24 |
| Radix Codonopsis (Dang Shen) | 5 | 17.24 |
| Radix Pseudostellariae (Tai Zi Shen) | 5 | 17.24 |
Frequency of use = number of occurrences/total number of herbal preparations.