(R)-carnitine + NAD(+) = 3-dehydrocarnitine + NADH + H(+)
(r)-carnitine + nad(+) = 3-dehydrocarnitine + nadh + h(+)
(R)-carnitine + NAD(+) = 3-dehydrocarnitine + NADH + H(+)
(r)-carnitine + nad(+) = 3-dehydrocarnitine + nadh + h(+)