In 2010, the license became non-exclusive
It supports the maintenance and repair of nerve cells, promoting overall neurological health
Lancet 1:289291 Sitta A, Vanzin CS, Biancini GB, Manfredini V, de Oliveira AB, Wayhs CA, Ribas GO, Giugliani L, Schwartz IV, Bohrer D, Garcia SC, Wajner M, Vargas CR (2011) Evidence that l-carnitine and selenium supplementation reduces oxidative stress in phenylketonuric patients
Noise-induced hearing loss, age-related hearing loss (presbycusis), and medication-induced cochlear damage account for a significant proportion of cases, and these structural changes are largely irreversible