negative regulation of tyrosine 3-monooxygenase activity
Known as: inhibition of tyrosine 3-monooxygenase activity, down-regulation of tyrosine 3-hydroxylase activity, negative regulation of tyrosine 3-hydroxylase activity
Any process that stops, prevents or reduces the frequency, rate or extent of tyrosine 3-monooxygenase activity. [GO_REF:0000059, GOC:bf, GOC:PARL…