at higher concentrations , the two oxadiazolidinones also affected the specific binding of ( 125i ) alpha-bungarotoxin ( alpha-bgt ) and [ 3h ] perhydrohistrionicotoxin ( h12-htx ) to torpedo nicotinic ach-receptors , but did not affect the specific binding of [ 3h ] quinuclidinyl benzilate ( qnb ) to rat brain muscarinic ach-receptors .
C0034830
nicotinic
C0034792
ach-receptors