Losartan
Variable Unit N Mean SD Min Median Max CV%
AUC % extrap (%) 21 2.46 0.98 1.07 2.06 5.15 39.77
AUC0-8h ([ng*hr]/mL) 21 361.55 105.08 223.79 378.30 630.95 29.06
AUCinf ([ng*hr]/mL) 21 382.76 112.02 239.09 403.35 665.63 29.27
ASCLAST ([ng*hr]/mL) 21 373.67 110.66 231.19 395.29 655.65 29.62
CLAST (ng/mL) 21 2.94 0.64 2.00 3.00 4.10 21.89
Cmax (ng/mL) 21 211.05 100.61 106.00 192.00 481.00 47.67
Ke (1/hr) 21 0.35 0.07 0.17 0.34 0.47 21.04
T1/2 (hr) 21 2.10 0.58 1.47 2.01 4.08 27.63
TLAST (hr) 21 10.48 1.53 8.00 10.00 12.00 14.61
Tmax (hr) 21 1.03 0.71 0.50 0.75 2.67 68.81
Vd (L) 21 417.54 122.19 241.92 401.76 678.22 29.27
Cl (L/h) 21 141.15 39.57 75.12 123.96 209.13 28.03
Losartan + Aspirin
Variable Unit N Mean SD Min Median Max CV%
AUC % extrap (%) 21 2.50 1.11 1.38 2.21 5.65 44.47
AUCALL ([ng*hr]/mL) 21 384.89 143.63 196.96 366.12 761.11 37.32
AUC0-8h ([ng*hr]/mL) 21 369.63 138.50 194.56 353.02 731.21 37.47
AUCinf ([ng*hr]/mL) 21 392.43 145.82 198.89 373.46 772.54 37.16
ASCLAST ([ng*hr]/mL) 21 383.30 144.41 194.56 366.12 761.11 37.67
CLAST (ng/mL) 21 3.12 0.87 2.00 2.80 5.40 27.91
Cmax (ng/mL) 21 210.62 104.94 60.30 178.00 438.00 49.83
Ke (1/hr) 21 0.37 0.10 0.23 0.35 0.60 26.78
T1/2 (hr) 21 2.02 0.52 1.16 1.98 2.96 25.85
TLAST (hr) 21 10.57 1.69 8.00 12.00 12.00 15.99
Tmax (hr) 21 1.13 0.67 0.50 0.75 2.67 59.35
Vd (L) 21 405.08 142.11 204.93 364.93 742.51 35.08
Cl (L/h) 21 144.72 52.76 64.72 133.88 251.40 36.46
Table 2: Mean pharmacokinetic parameters of losartan obtained from 21 volunteers after administration of 50 mg losartan in presence or absence of aspirin (81 mg).
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