ID 1.5.1.18 DE Ephedrine dehydrogenase. CA (-)-ephedrine + NAD(+) = (R)-2-methylimino-1-phenylpropan-1-ol + NADH. CC -!- The product immediately hydrolyzes to methylamine and 1-hydroxy-1- CC phenylpropan-2-one. CC -!- Acts on a number of related compounds including (-)-sympatol, CC (+)-pseudoephedrine and (+)-norephedrine. //