The excitatory response to intracarotid injection of capsaicin was significantly inhibited by pretreatment with the vanilloid receptor (capsaicin receptor) antagonist ruthenium red (200 mmol, 0.1 ml).

• 应用辣椒素受体阻断剂钌红(RR;200 mmol； 0.；1 ml)；可明显抑制辣椒素的上述效应。