@bear78-- Have you tried steeping it less, to make the taste milder? You can also try adding lemon or honey.
Black cohosh is very beneficial for many menopausal women, but like other menopause treatments and remedies, it's not suitable for everyone. I don't think anyone should drink black cohosh tea without checking with their doctor first.
There are some situations where menopausal women should not take anything that mimics estrogen in the body. For example, women with a high risk of breast cancer or with a growth like an adenoma in their breast, should not use plants with phytoestrogen. Estrogen can fuel cancer cells or speed up the process. I have a breast adenoma and I am not allowed to use black cohosh tea or similar remedies.