Home › Articles › UUU – THE GUIDING SYMPTOMS OF OUR MATERIA MEDICA By CONSTANTINE HERING, M.D. Print ← Back to Articles Article UUU – THE GUIDING SYMPTOMS OF OUR MATERIA MEDICA By CONSTANTINE HERING, M.D. Uran. n. Urt. u. Ust. Uva Uranium Nitricum —– Uran. n. Urtica Urens —– Urt. u. Ustilago (Ustilago Maydis) —– Ust. Uva Ursi —– Uva ® 2002