abstract |
Tetrahydrobiopterin (BH4) or a pharmaceutically acceptable salt thereof for use in treating conditions associated with elevated phenylalanine levels, wherein BH4 or a salt thereof is to be administered orally once daily, 5 to 60 minutes after a meal and where the condition is selected from the group consisting of mild phenylketonuria (PKU), classic PKU, and hyperphenylalaninemia. |