Table 2.

Experimental parameters in testing analgesia following treatment with drugs in NVS, nasal water solution (WS), nasal non-vesicular system (NV) and oral preparation (PO) in animal model.

Drug	Drug Concentration in Systems (% w/w)	Administrated Drug Dose (mg/kg)	Testing Time after Treatment (min)
Ketoprofen	3	11	30
Butorphanol Tartrate	0.04	0.15	10
Tramadol HCl	0.9	5	10, 60, 180