下列有關離子通道阻斷劑之敘述，何者錯誤？
Tetrodotoxin（TTX）從外面阻斷sodium channel
Apamin 阻斷Big Ca-activated potassium channel
Picrotoxin阻斷\mathrm{GABA}_{\mathrm{A}} receptor
\mathrm{GABA}_{\mathrm{A}}
Philanthotoxin 阻斷AMPA receptor
