Mechanism of Tongxieyaofang on irritable bowel syndrome AntinociceptiVe response mechanism of tetramethylpyrazine Regulation of Weichang’an Pill on intestinal digestive enzymes and gastrointestinal hormone levels in compound diarrhea rats Regulation of Weichang’an Pill on intestinal digestive enzymes and gastrointestinal hormone levels in compound diarrhea rats Effect of Tianshu Capsule on neurotransmitter in rat model of dura mater following electrical stimulation Effect of triptolide on iNOS and SP expressions in spinal dorsal horn and dorsal root ganglion of rats with adjuvant arthritis