Sample / Amount / % API
92.5 to 110 (USP, 2011)                                              92.5 to 110 (USP, 2011)                                       90-120 (USP, 2011)
Amoxicillin capsules 250 mg Flucloxacillin capsules 250 mg Cloxacillin capsules 250 mg
Sample code Amount (mg) % API Sample code Amount (mg) % API Sample code Amount (mg) % API
01A 260.85 104.34 FLMG01 276.10 110.44 CLLP01 156.00 62.40
01B 227.80 91.12 FLMG02 161.63 64.65 CLLP02 177.75 71.10
02A 255.95 102.38 FLMG03 111.85 44.74 CLLP03 145.18 58.07
02B 244.83 97.93 FLLP04 269.08 107.63 CLAR04 139.60 55.84
03A 203.83 81.53 FLLP05 250.98 100.39 CLAR05 201.95 80.78
03B 240.15 96.06 FLLP06 239.90 95.96 CLAR06    
03C 244.53 97.81 FLAR07 301.13 120.45 CLMG    
04A 230.07 92.03 FLAR08 147.65 59.06      
05A 237.45 94.98            
06A 217.20 86.88            
06B 253.48 101.39            
06C 238.58 95.43            
08A 232.97 93.19            
Amoxicillin capsules 500mg            
07A 480.00 96.00            
07B 481.85 96.37            
09A 493.15 98.63            
Table 14: HPLC analysis of amoxicillin, flucloxacillin and cloxacillin capsule samples.