| Amoxicillin and Clavulanate Potassium


| Dose† and regimen | AUC0-24 (mcg•hr/mL) | Cmax (mcg/mL) | ||
|---|---|---|---|---|
| amoxicillin/clavulanate potassium | amoxicillin (±S.D.) | clavulanate potassium (±S.D.) | amoxicillin (±S.D.) | clavulanate potassium (±S.D.) |
| * Mean values of 14 normal volunteers (n = 15 for clavulanate potassium in the low-dose regimens). Peak concentrations occurred approximately 1.5 hours after the dose. † Administered at the start of a light meal. |
||||
| 250 mg/125 mg q 8 h |
26.7 ± 4.56 |
12.6 ± 3.25 |
3.3 ± 1.12 |
1.5 ± 0.7 |
| 500 mg/125 mg q 12 h |
33.4 ± 6.76 |
8.6 ± 1.95 |
6.5 ± 1.41 |
1.8 ± 0.61 |
| 500 mg/125 mg q 8 h |
53.4 ± 8.87 |
15.7 ± 3.86 |
7.2 ± 2.26 |
2.4 ± 0.83 |
| 875 mg/125 mg q 12 h |
53.5 ± 12.31 |
10.2 ± 3.04 |
11.6 ± 2.78 |
2.2 ± 0.99 |
|
MIC (mcg/mL)
|
Interpretation
|
| ≤8/4 |
Susceptible (S) |
| 16/8 |
Intermediate (I) |
| ≥32/16 |
Resistant (R) |
|
MIC (mcg/mL)
|
Interpretation
|
| ≤4/2 |
Susceptible (S) |
| ≥8/4 |
Resistant (R) |
|
MIC (mcg/mL)
|
Interpretation
|
| ≤2/1 |
Susceptible (S) |
| 4/2 |
Intermediate (I) |
| ≥8/4 |
Resistant (R) |
|
†† Expressed as concentration of amoxicillin in the presence of clavulanic acid at a constant 2 parts amoxicillin to 1 part clavulanic acid. |
|
|
Microorganism
|
MIC
Range
(mcg/mL)††
|
|
Escherichia coli ATCC 25922 |
2 to 8 |
|
Escherichia coli ATCC 35218 |
4 to 16 |
|
Haemophilus influenzae ATCC 49247
|
2 to 16 |
|
Staphylococcus aureus ATCC 29213
|
0.12 to 0.5 |
|
Streptococcus pneumoniae ATCC 49619
|
0.03 to 0.12 |
|
Zone Diameter (mm)
|
Interpretation
|
| ≥18 |
Susceptible (S) |
| 14 to 17 |
Intermediate (I) |
| ≤13 |
Resistant (R) |
|
Zone Diameter (mm)
|
Interpretation
|
| ≥20 |
Susceptible (S) |
| ≤19 |
Resistant (R) |
| Microorganism
|
Zone Diameter (mm)
|
|
Escherichia coli ATCC 25922 |
18 to 24 |
|
Escherichia coli ATCC 35218 |
17 to 22 |
|
Staphylococcus aureus ATCC 25923 |
28 to 36 |
|
Haemophilus influenzae ATCC 49247
|
15 to 23 |
Amoxicillin and clavulanate potassium tablets may be taken without regard to meals; however, absorption of clavulanate potassium is enhanced when amoxicillin and clavulanate potassium tablets are administered at the start of a meal. To minimize the potential for gastrointestinal intolerance, amoxicillin and clavulanate potassium tablets should be taken at the start of a meal.
The number of bacteriologically evaluable patients was comparable between the 2 dosing regimens. Amoxicillin and clavulanate potassium produced comparable bacteriological success rates in patients assessed 2 to 4 days immediately following end of therapy. The bacteriologic efficacy rates were comparable at 1 of the follow-up visits (5 to 9 days post-therapy) and at a late post-therapy visit (in the majority of cases, this was 2 to 4 weeks post-therapy), as seen in the table below:
| 875 mg/125 mg q 12 h | 500 mg/125 mg q 8 h | |
|---|---|---|
| Pyelonephritis |
173 patients |
188 patients |
| Complicated UTI |
135 patients |
133 patients |
| Total patients |
308 |
321 |
| 875 mg/125 mg q 12 h | 500 mg/125 mg q 8 h | |
|---|---|---|
| 2 to 4 days |
81%, n = 58 |
80%, n = 54 |
| 5 to 9 days |
58.5%, n = 41 |
51.9%, n = 52 |
| 2 to 4 weeks |
52.5%, n = 101 |
54.8%, n = 104 |



Manufacturer
NorthStar Rx LLC
Active Ingredients
Source
- U.S. National Library of Medicine
- DailyMed
- Last Updated: 18 May 2013
Drugs and Medications
Amoxicillin and clavulanate potassium [Aurobindo Pharma Limited]
Amoxicillin and Clavulanate Potassium Tablets, USP
Amoxicillin and clavulanate potassium [Aurobindo Pharma Limited]
Amoxicillin and clavulanate potassium [NorthStar Rx LLC]
Amoxicillin and clavulanate potassium [Aurobindo Pharma Limited]
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