Effects of Panax ginseng extract in patients with fibromyalgia: a 12-week, randomized, double-blind, placebo-controlled trial

The purpose of the study was to evaluate the efficacy of an extract of Panax ginseng in patients with fibromyalgia. A randomized, double-blind, controlled clinical trial was carried out over 12 weeks to compare the effects of P. ginseng (100 mg/d) with amitriptyline (25 mg/d) and placebo in 38 patients with fibromyalgia: 13 in Group I (amitriptyline), 13 in Group II (placebo), and 12 in Group III (P. ginseng). Ratings on the Visual Analogue Scale (VAS) revealed a reduction in pain in the P. ginseng group (p < .0001), an improvement in fatigue (p < .0001) and an improvement in sleep (p < .001),...