clearance of inulin and p-aminohippurate and excretion of water and sodium were measured for eight to 11 clearance periods of 20 min duration in anaesthetized , 3 % volume-expanded rats , before and after intravenous infusions of the amino acids l-dopa ( l-3,4-dihydroxyphenylalanine ) and 5-hydroxytryptophan .
C0023570
l-dopa
C0013023
dihydroxyphenylalanine