Add the certain dose of NK3 special antagonist H-2788 and different doses of GK-1806 to the ileal rabbit preparations in vitro together, and then observe their collective effect.

• NK_3 受体拮抗剂H-2788 与不同剂量的GK-1806 同时作用于体外制备的兔离体肠管,来观察其作用效应。