The genetic dysfunction phenylketonuria (PKU) is The shortcoming to metabolize phenylalanine because of an absence of the enzyme phenylalanine hydroxylase. People with this disorder are known as "phenylketonurics" and must control their consumption of phenylalanine. Picamilon, which remains marketed by prescription in Russia, is produced by synthesizing niacin (vitamin B3) https://marye567omi5.sasugawiki.com/user