Memantine Lactose Adduct 2 HCl(3S,4S,5R)-2-((((1r,3R,5S,7S)-3,5-dimethyladamantan-1-yl)amino)methyl)-4-(((2S,3R,4S,5R,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)tetrahydro-2H-pyran-2-yl)oxy)tetrahydro-2H-pyran-2,3,5-triol and (2S,3R,4S,5R,6R)-2-(((2R,3S,4S,5S)-5-((((1r,3R,5S,7S)-3,5-dimethyladamantan-1-yl)amino)methyl)-4,5-dihydroxy-2-(hydroxymethyl)tetrahydrofuran-3-yl)oxy)-6-(hydroxymethyl)tetrahydro-2H-pyran-3,4,5-triol, hydrochloride (1:1)