Treatment is required for at least 8 weeks to alleviate symptoms. Clinical studies exist to support the primary application of black cohosh for the treatment of perimenopausal symptoms such as hot flash, headache, vertigo, heart palpitations, ringing in the ears, and associated psychological symptoms, including irritability, sleep disturbances, and depressive moods.
Treatment requires at least eight weeks to alleviate symptoms.
Clinical studies have ranged in length from 8 weeks to as long as 6 months. Therapeutic efficacy and safety of Cimicifuga racemosa for gynecological disorders. Cimicifuga racemosa , a literature review.