[Des-Tyr1]-gamma-Endorphin is a neuropeptide, which can be found in human cerebrospinal fluid. [Des-Tyr1]-gamma-Endorphin exhibits antidepressant efficacy, facilitates the extinction of active avoidance and attenuates the passive avoidance behavior in rats.

Erythorbic Acid is an antiscorbutic agent.

Uridine triacetate (RG 2133 triacetate) (Tri-O-acetyl uridine), an orally active prodrug of uridine, is efficiently absorbed in the gut and swiftly deacetylated in the circulation to release free uridine.