SPL Set ID: 3f0d6820-ff59-40c0-882f-aeea2dd1d1ad

Sapropterin dihydrochloride is an orally administered Phenylalanine Hydroxylase activator (or PAH activator). Sapropterin dihydrochloride, the active pharmaceutical ingredient in sapropterin dihydrochloride powder for oral solution, is a synthetic preparation of the dihydrochloride salt of naturally occurring tetrahydrobiopterin (BH4). Sapropterin dihydrochloride is a white to pale yellow color powder. The chemical name of sapropterin dihydrochloride is (6R)-2-amino-6-[(1R,2S)-1,2-dihydroxypropyl]-5,6,7,8-tetrahydro-4(1H)-pteridinone dihydrochloride and the molecular formula is C 9 H 15 N 5 O 3 ·2HCl with a molecular weight of 314.17. Sapropterin dihydrochloride has the following structural formula: Sapropterin dihydrochloride is supplied as powder for oral solution containing 100 mg of sapropterin dihydrochloride (equivalent to 76.8 mg of sapropterin base). Sapropterin dihydrochloride is also supplied as powder for oral solution containing 500 mg of sapropterin dihydrochloride (equivalent to 384 mg of sapropterin base). Sapropterin dihydrochloride powder for oral solution is off-white to yellow in color. Each unit dose packet contains the following inactive ingredients: ascorbic acid, mannitol, potassium citrate monohydrate and sucralose. sapropretinepfossructure