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. 2020 Feb 26;82(4):446–451. doi: 10.1292/jvms.19-0595

Table 3. Cmax, AUCinf and 90% confidence interval (CI) of the estimate of β following the oral administration of sildenafil at 1, 2 and 4 mg/kg in dogs with chronic embolic pulmonary hypertension (CEPH).

Cmax (ng/ml) β 90%CI AUCinf (ng·hr/ml) β 90%CI


1 mg/kg 2 mg/kg 4 mg/kg 1 mg/kg 2 mg/kg 4 mg/kg
CEPH (n=4) 154.5 352.5 500.7 0.81 0.62–1.00 659.7 1,313.0 2,512.4 0.94 0.65–1.23
Healthy (n=5)a) 174.9 416.0 1,111.4 1.33 1.17–1.49 791.6 1,593.0 4,319.6 1.23 1.07–1.39

a) For reference, Cmax, AUCinf and 90%CI of the estimate of β in healthy dogs (each n=5) were taken from a previous study [1] in which the same assay as performed in the present study was utilised. Cmax, maximum plasma concentration; AUCinf, area under the curve from time 0 to infinity.