As a Homeopath, many times I will use tissue salts in my prescriptions, along with homeopathic medicines.  Homeopathic medicines are made from plants, animals, minerals, metals, and tissue that when taken in its purest liquid form, being diluted and successed, it can treat the body on a cellular level.  We choose the right homeopathic medicine based on the law of similars, matching it to the illness as the patient has experienced it and to the overall physical, mental, and emotional characteristics of the patient.