ATC Group: A16AX07 Sapropterin

Anatomical Therapeutic Chemical Classification System

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Sapropterin

Hierarchical Position

Active Ingredients

Chemical substance
Description

Sapropterin is a synthetic version of the naturally occurring 6R-BH4, which is a cofactor of the hydroxylases for phenylalanine, tyrosine and tryptophan. The rationale for administration of sapropterin in patients with BH4-responsive PKU is to enhance the activity of the defective phenylalanine hydroxylase and thereby increase or restore the oxidative metabolism of phenylalanine. The rationale for administration of sapropterin in patients with BH4 Deficiency is to replace the deficient levels of BH4, thereby restoring the activity of phenylalanine hydroxylase.