UNDA 273 has an action on the endocrine system. It is an outstanding remedy because of its wide spectrum of activity, from hormonal disequilibrium due to thyroid dysfunction to the degenerative lesion marked by hormonal troubles. At this stage we are at the 2nd and 3rd phases of compensation and this remedy acts on the last axis of defence. It is particularly indicated in degenerative lesions of the thyroid (hard goitre) and of the throat. Unda Number 273 is thus indicated for thyroid dysfunction, nervous spasms of thyroid origin, hard goitres, and degenerative evolution of the throat and lung.