Table 3. Concentration of azaperone in the blood serum (ng/ml).

Blood collection time (min)	Groups
	A (2 mg/kg b.w. i.m., n = 8)	B (2 mg/kg b.w., n = 8)	C (4 mg/kg b.w., n = 8)	D (control, n = 8)
0	n.d.x	n.d.x	n.d.x	n.d.x
30	156.5 ± 61.5x	77.74 ± 27.1y	128.4 ± 52.5x	n.d.x
90	75.1 ± 20.9x	35.5 ± 14.8y	71.3 ± 40.5x	n.d.x
240	28.1 ± 6.6x	15.8 ± 5.2y	28.2 ± 8.3x	n.d.x

Data are expressed as the mean ± standard deviation

Means with the same blood collection time and row lacking a common superscript letter (x, y, z) differ significantly (P < 0.05)

n.d. = non-detected – azaperone concentration below the detection limit – 0.785 ng/ml