White Peony Root for Muscle Function

Research suggests that white peony root may have effects on smooth muscle and cardiovascular tissue, with one laboratory study finding that an alcohol-based extract of Paeonia emodi caused relaxation of airway smooth muscle, reduced heart muscle contractions, and relaxed blood vessel tissue through mechanisms involving calcium signaling. The available evidence consists of a single preclinical study conducted on isolated animal tissues and human blood samples, along with one descriptive clinical report from traditional Chinese medicine practitioners that mentions peony-containing formulas in the context of dialysis care but does not specifically address muscle function. Neither study was a controlled human trial, meaning the findings cannot be directly applied to effects in living people, and the clinical report reflects practitioner observation rather than rigorously measured outcomes. Overall, the current research base on white peony root and muscle function is extremely limited, and no firm conclusions about its effects in humans can be drawn from these sources alone.