These are herbs. Black Cohosh is an antispasmodic, astringent, diuretic, sedative, hormonal, expectorant, emmenagoue. Used for nervous disorders, it is put in many merve combinations. Has a tonic influence on the mucous and serous tissues of the body. Stimulates secretions of the liver, kidney, and lymph glands. Helps break up mucus in the lungs and head, in many sinus combinations. NOTE: Taking too much Black Cohosh may cause a headache. It will go away in a few hours but you will know that you should take less the next time or switch to a combination without Black Cohosh. Used in the treatment of nervous conditions. Damiana is an aphrodisiac, hormonal, tonic herb. Gives energy to the limbs. Has been used to treat Parkinson's disease and nerves. Wild yam, I am not familiar with. Diet and herbs have been known to help alleviate symptoms, but as of yet not presented a cure. This information was taken from "The How to Herb Book" by Velma J. Keith and Monteen Gordon.