Radix Paeoniae Alba tastes bitter and slightly cold, and has the effects of nourishing blood, softening the liver, relieving pain, astringing yin and arresting sweating. It is suitable for treating chest pain, diarrhea and abdominal pain, spontaneous sweating and night sweats, fever due to yin deficiency, irregular menstruation, metrorrhagia and leukorrhagia.
Modern medicine believes that paeoniflorin has anti-inflammatory, anti-ulcer, antibacterial, antipyretic and blood sugar regulating effects, and Paeonia lactiflora also has the function of dilating blood vessels. Paeonia lactiflora decoction has inhibitory effects on Shigella, Salmonella typhi, Streptococcus pneumoniae, Escherichia coli and Pseudomonas aeruginosa.