Product and method for increasing uridine concentration in blood plasma

The invention pertains to the use of soluble sodium in the manufacture of a composition or kit of parts for (therapeutically) improving and prolonging blood plasma uridine levels and tissue availability of uridine, and/or for treating or preventing impaired blood plasma 5 uridine levels and tissue availability of uridine, and/or for preventing/treating disorders associated with impaired blood plasma and tissue availability of uridine, in a mammal, preferably a human being, by orally co-administering soluble sodium and uridine in a molar ratio of soluble sodium to uridine of more than 1:1, preferably more than 1.5:1, more preferably more than 2:1, even more preferably at least 2.5:1, even more preferably 10 at least 2.8:1, more preferably 3:1 - 15:1, most preferably 3:1 - 10:1, particularly 3:1 5:1.