“Abstract The inhibitory action … release inducible by epinephrine , comprising several non-…, phenylbutazone and sulfinpyrazone —and other non-anti-inflammatory agents (NAA)—prostaglandin E 1 , adenosine, dipyridamole, methysergide and cyproheptadine—can be prevented, … to human platelet rich plasma of the essential fatty acid, 5,8,11,14 eicosatetraenoic (arachidonic) acid.”