Table 3.

The effect of the synthesized compounds 15a-l, morphine, and racecadotril on the number of licking after the injection of formalin into paw in mice.

Compound	Concentration (mg/kg)	First phase Licking (min)	Second phase Licking (min)
	20	7.27 ± 0.47	8.85 ± 1.00
15a	40	7.12 ± 0.72	7.83 ± 0.36
	80	5.15 ± 0.29	4.08 ± 0.56
	20	7.27 ± 0.38	8.97 ± 0.88
15b	40	6.54 ± 0.34	8.52 ± 0.85
	80	5.15 ± 0.92	7.84 ± 1.03
	20	4.15 ± 0.54	7.03 ± 0.82
15c	40	7.01 ± 0.52	6.15 ± 1.00
	80	6.09 ± 0.63	4.58 ± 0.98
	20	7.27 ± 0.14	7.11 ± 0.95
15d	40	6.84 ± 0.57	6.98 ± 1.04
	80	6.29 ± 0.76	6.49 ± 0.44
	20	6.39 ± 0.84	8.44 ± 1.00
15e	40	7.13 ± 0.82	7.89 ± 0.82
	80	6.72 ± 0.30	7.03 ± 0.24
	20	6.88 ± 0.21	7.39 ± 0.22
15f	40	7.49 ± 0.57	6.98 ± 0.72
	80	7.33 ± 0.76	6.11 ± 0.31
	20	5.28 ± 0.59	6.35 ± 1.05
15g	40	6.23 ± 0.34	5.15 ± 0.35
	80	5.68 ± 0.11	4.78 ± 0.63
	20	6.88 ± 0.46	7.19 ± 0.21
15h	40	6.14 ± 0.44	6.72 ± 0.89
	80	5.28 ± 0.59	6.35 ± 1.05
	20	5.92 ± 0.31	8.68 ± 0.09
15i	40	7.27 ± 0.25	8.17 ± 0.61
	80	6.87 ± 0.29	7.74 ± 0.11
	20	4.21 ± 0.25	8.02 ± 0.26
15j	40	3.71 ± 0.40	6.19 ± 1.00
	80	3.11 ± 0.15	3.77 ± 0.26
	20	6.84 ± 0.63	7.11 ± 0.27
15k	40	6.29 ± 0.31	6.98 ± 0.19
	80	5.92 ± 0.22	6.49 ± 0.60
	20	5.09 ± 0.32	6.78 ± 0.16
15l	40	3.68 ± 0.50	5.89 ± 0.22
	80	2.24 ± 0.13	3.48 ± 0.11
Saline	90	7.32 ± 0.13	9.16 ± 0.89
Morphine	5	3.34 ± 0.08	2.86 ± 0.27
	20	6.09 ± 0.87	7.57 ± 0.34
Racecadotril	40	6.78 ± 0.65	7.15 ± 0.31
	80	6.34 ± 0.66	5.71 ± 0.36