America's Compounding Center says the following about Uridine:
"Uridine is naturally present in the body and is a component of RNA whichis used to produce DNA. Urisine is also involved in the breakdown of carbohydrates to produce energy. Some patients with mitochondrial diseases cannot produce uridine. A recent clinical trial has reported that uridine supplementation may improve cognition, muscle control, and kidney function in children with mitochondrial disease and was generally well-tolerated over a period of two years. The ideal dose of uridine for patients with mitochondrial disease is currently unknown. Long-term therapy with 150 mg of uridine daily has been reported as safe. Uridine supplementation may cause stomach discomfort and diarrhea."