Does dong quai have estrogenic effects in postmenopausal women?

 Dong quai for menopause?

This recent study suggests that Dong quai does not have estrogen-like effects.

"CONCLUSION(S): Used alone, dong quai does not produce estrogen-like responses in endometrial thickness or in vaginal maturation and was no more helpful than placebo in relieving menopausal symptoms" (Hirata et al, 1997).

Reference:
Hirata JD, Swiersz LM, Zell B, Small R, Ettinger B. Does dong quai have estrogenic effects in postmenopausal women? A double-blind, placebo-controlled trial. Fertil Steril. 1997 Dec;68(6):981-6.