Tinnitus is common but current treatments including antidepressants and anticonvulsants show limited efficacy, creating urgent clinical need for novel approaches. Psilocybin activates 5-HT2A receptors, triggering glutamate release and upregulating brain-derived neurotrophic factor (BDNF), which restores neural plasticity and rebalances the excitatory-inhibitory imbalance central to tinnitus pathology. In clinical trials, psilocybin's effects sustained for over 6 months and outperformed traditional medications, with the FDA granting "Breakthrough Therapy" designation twice, positioning it as a potential paradigm shift for this previously intractable auditory disorder.