It’s only fair to share… Sepiapterin 17094-01-8 Molecular Weight 237.22 Formula C9H11N5O3 2-amino-6-[(2S)-2-hydroxypropanoyl]-7,8-dihydro-3H-pteridin-4-one (S)-2-Amino-6-(2-hydroxypropanoyl)-7,8-dihydropteridin-4(3H)-one 7/28/2025 fda approved, Sephience, To treat hyperphenylalaninemia in patients with sepiapterin-responsive phenylketonuria, in conjunction with a phenylalanine-restricted diet Sepiapterin, sold under the brand name Sephience, is a medication used for the treatment of hyperphenylalaninemia.[2][3] Sepiapterin is a phenylalanine hydroxylase activator.[1] The most common side effects are upper respiratory …