Table 1. Experimental Groups, Pretreatment, and Drug Challenge Protocol.

	Naive			Chronic CLG
Pretreatment	No	No	No	SAL 3–13 days	CLG × 3 days	CLG × 6 days	CLG × 13 days
Experimental day					Day 4	Day 7	Day 14
Challenge with	SAL+veh	SAL+PRX	CLG+PRX	CLG+veh	CLG+PRX	CLG+PRX	CLG+PRX

Abbreviations: CLG, clorgyline; PRX, paroxetine; SAL, saline; Veh, vehical.

CLG at a dose of 2 mg/kg, s.c.

PRX at 15 mg/kg, i.p.

SAL and veh at 1 ml/kg, s.c.