Table 1

The antinocicpetive response of CCK8s given i.t. 5 min before the TFT^1-a

Dose CCK8s (ng)	% MPE (S.E.M.)
0	1.2 (1.3)
1	−0.5 (2.1)
5	−0.2 (1.3)
10	1.1 (1.1)

↵1-a Each group consisted of 10 mice.