amethocaine ( tetracaine ) ( 1-10 microm ) produces a concentration-dependent in-vitro inhibition of mitochondrial membrane-bound mao activity towards tyramine ( 18-84 % in brain and 19-84 % in liver ) and 5-hydroxytryptamine ( 5-ht ) ( 23-94 % in brain and 20-100 % in liver ) .
C0086045
concentration
C0006104
brain