Abstract
Tinnitus is any perception of sound that occurs in the absence of an external acoustic stimulus. It affects 15% of the world population (Cederroth RC et al. 2019) and 22% of the population of São Paulo city (Oiticica & Bittar 2015). One of the pathophysiological mechanisms is related to the increased glutamate activity, the main excitatory neurotransmitter within the cochlea, it is excito…