In our clinical treatment, Radix Paeoniae Alba together with other herbs showed significant anticancer efficacy among patients with pancreatic cancer, and in vitro experiments showed that the crude water extract of Radix Paeoniae Alba inhibited ErbB3 phosphorylation and retarded PI3K/Akt signaling in pancreatic cancer cells. The gene discussed is AKT1; the disease is familial pancreatic carcinoma.