5-Hydroxyindole, a hydroxylated indole, can be found in a vast array of pharmacologically active agents and natural products. 5-Hydroxyindole slows desensitization of the 5-HT3 receptor-mediated ion current in N1E-115 neuroblastoma cells.

L-Ornithine L-aspartate lowers blood ammonia concentration and to eliminate symptoms of hepatic encephalopathy associated with liver cirrhosis.

TFEB activator 1 is an activator?of transcription factor EB (TFEB) ?with promise for the prevention or treatment of Alzheimer's disease.