An ethanolic extract of black cohosh causes hematological changes but not estrogenic effects in female rodents.
Mercado-Feliciano M, Cora MC, Witt KL, Granville CA, Hejtmancik MR, Fomby L, Knostman KA, Ryan MJ, Newbold R, Smith C, Foster PM, Vallant MK, Stout MD.
Mercado-Feliciano M, et al. Among authors: stout md.
Toxicol Appl Pharmacol. 2012 Sep 1;263(2):138-47. doi: 10.1016/j.taap.2012.05.022. Epub 2012 Jun 9.
Toxicol Appl Pharmacol. 2012.
PMID: 22687605
Free PMC article.