digoxin concentration in myocardium , skeletal muscle , liver , kidney , stellate ganglion , vagus nerve , femoral nerve , brain and brainstem medulla was higher in dogs treated with a combination of digoxin and quinidine than in dogs treated with digoxin alone , but remained proportional to the serum digoxin concentration in all tissues except the brainstem medulla .
C0086045
concentration
C0006104
brain