Prostaglandin E0-d4 is the isotope labelled analog of Prostaglandin E0 (P838605); a metabolite of Prostaglandin E1 (P838600) which can inhibit aggregation, ATP release, and thromboxane generation by human platelets. Prostaglandin E0 can also decrease the formation of cyclooxygenase (COX) metabolites by inhibiting the induction of COX-2 protein by LPS.