Preventive Effect of Korean Red Ginseng for Acute Respiratory Illness: A Randomized and Double-Blind Clinical Trial

Lee, Chang-Seop; Lee, Ju-Hyung; Oh, Mira; Choi, Kyung-Min; Jeong, Mi Ran; Park, Jong-Dae; Kwon, Dae Young; Ha, Ki-Chan; Park, Eun-Ock; Lee, Nuri; Kim, Sun-Young; Choi, Eun-Kyung; Kim, Min-Gul; Chae, Soo-Wan

Among the 34 subjects that experienced ARI, the symptom duration was 5.2 ± 2.3 day in the KRG group and 6.3 ± 5.0 day in the placebo group (P = 0.475). The symptom duration in the KRG group was short, but there was no statistical difference between the two groups ( Table 3 ). The symptom score (KRG 9.5 ± 4.5 vs placebo 17.6 ± 23.1) was lower in the KRG group than in the placebo group. However, no statistical significance was observed (P = 0.241). Among the symptoms, the frequency rate of cough (P = 0.045) in the KRG group was significantly lower than in the placebo group. The nasal congestion (P = 0.064) and headache (P = 0.059) in the KRG group was lower than in the placebo group, which was marginally significant.