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. It is utilized in the research of 5-fluorouracil (5-FU) and capecitabine toxicity, particularly targeting early-onset cardiac or central nervous system (CNS) complications.

Uridine (Uridin), a nucleoside, consists of uracil and D-ribose by a β-N1-glycosidic bond.

Uridine triphosphate (Uridine 5'-triphosphate) increases proliferation of human cancerous pancreatic duct epithelial cells by activating P2Y2 receptor.

Uridine triphosphate trisodium salt (UTP, Trisodium Salt) is a nucleotide.