I've just read the attached info in the Women's Health Bible dated 2004 about alternative remedies for symptoms of menopause. It says in a study of 80 menopausal women it was found that black cohosh was as effective as HRT in lessening the severity of hot flushes, memory loss, depression and mood swings as well as thickening the vaginal tissues. It sounds like a miracle pill! 
I've heard of Agnus Castus but not Black Cohosh. Has anyone heard of or tried this? I used to take Evening Primrose but found it stopped helping after a while and now I'm very sceptical of anything herbal 