Terdapat 23 Formula Tiongkok yang diawali dengan "X"
- Xi Jiao Di Huang Tang (Rhinoceros Horn and Rehmannia Decoction) Rhinoceros Horn and Rehmannia Decoction (Xi Jiao Di Huang Tang)
- Xian Fang Huo Ming Yin (Sublime Formula for Sustaining Life) Sublime Formula for Sustaining Life (Xian Fang Huo Ming Yin)
- Xiang Fu Xuan Fu Hua Tang (Cyperus and Inula Decoction) Cyperus and Inula Decoction (Xiang Fu Xuan Fu Hua Tang)
- Xiang Ru San (Elsholtzia Powder) Elsholtzia Powder (Xiang Ru San)
- Xiang Su San (Cyperus and Perilla Leaf Powder) Cyperus and Perilla Leaf Powder (Xiang Su San)
- Xiao Chai Hu Tang (Minor Bupleurum Decoction) Minor Bupleurum Decoction (Xiao Chai Hu Tang)
- Xiao Cheng Qi Tang (Minor Order the Qi Decoction) Minor Order the Qi Decoction (Xiao Cheng Qi Tang)
- Xiao Feng San (Eliminate Wind Powder from True Lineage) Eliminate Wind Powder from True Lineage (Xiao Feng San)
- Xiao Huo Luo Dan (Minor Invigorate the Collaterals Special Pill) Minor Invigorate the Collaterals Special Pill (Xiao Huo Luo Dan)
- Xiao Ji Yin Zi (Cephalanoplos Decoction) Cephalanoplos Decoction (Xiao Ji Yin Zi)
- Xiao Jian Zhong Tang (Minor Construct the Middle Decoction) Minor Construct the Middle Decoction (Xiao Jian Zhong Tang)
- Xiao Luo Wan (Reduce Scrofula Pill) Reduce Scrofula Pill (Xiao Luo Wan)
- Xiao Qing Long Tang (Minor Bluegreen Dragon Decoction) Minor Bluegreen Dragon Decoction (Xiao Qing Long Tang)
- Xiao Xian Xiong Tang (Minor Sinking Into the Chest Decoction) Minor Sinking Into the Chest Decoction (Xiao Xian Xiong Tang)
- Xiao Xu Ming Tang (Minor Prolong Life Decoction) Minor Prolong Life Decoction (Xiao Xu Ming Tang)
- Xiao Yao San (Rambling Powder, Free and Easy Wanderer) Rambling Powder, Free and Easy Wanderer (Xiao Yao San)
- Xie Bai San (Drain the White Powder) Drain the White Powder (Xie Bai San)
- Xie Huang San (Drain the Yellow Powder) Drain the Yellow Powder (Xie Huang San)
- Xie Xin Tang (Drain the Epigastrium Decoction) Drain the Epigastrium Decoction (Xie Xin Tang)
- Xing Su San (Apricot Kernel and Perilla Leaf Powder) Apricot Kernel and Perilla Leaf Powder (Xing Su San)
- Xuan Bi Tang (Disband Painful Obstruction Decoction) Disband Painful Obstruction Decoction (Xuan Bi Tang)
- Xuan Fu Dai Zhe Tang (Inula and Hematite Decoction) Inula and Hematite Decoction (Xuan Fu Dai Zhe Tang)
- Xue Fu Zhu Yu Tang (Drive Out Stasis in the Mansion of Blood Decoction) Drive Out Stasis in the Mansion of Blood Decoction (Xue Fu Zhu Yu Tang)