OpenClaim

Clavulanate Side Effects

The most commonly reported side effects of clavulanate include drug hypersensitivity, diarrhoea, and nausea, based on 35,751 FDA adverse event reports from 2004 to 2025. 2.6% of reports found the drug to be ineffective.

Clavulanate side effects

Percentages show how often each reaction appears relative to total reports for clavulanate.

1
Drug Hypersensitivity5.3%1,883
2
Diarrhoea4.7%1,672
3
Nausea3.7%1,317
4
Dyspnoea3.5%1,244
5
Fatigue3.4%1,231
6
Pyrexia3.4%1,222
7
Pneumonia3.3%1,185
8
Vomiting2.9%1,045
9
Drug Ineffective2.6%938
10
Acute Kidney Injury2.5%899
11
Off Label Use2.5%897
12
Pain2.5%887
13
Diarrhoea2.4%869
14
Headache2.4%864
15
Pyrexia2.4%859

These are voluntary reports and do not establish that clavulanate caused these reactions.

Report severity

80.6%Serious28,825 reports
51.3%Hospitalizations18,356 reports
10.1%Fatal3,617 reports

Seriousness is determined by the reporter, not by OpenClaim.

Clavulanate drug interactions

Other drugs that appear in adverse event reports alongside clavulanate. Drugs flagged as a suspected cause appear in the first column. Drugs taken at the same time but not suspected appear in the second.

Also suspected

1
Amoxicillin43.5%15,564
2
Lenalidomide3.5%1,248
3
Acetaminophen3.2%1,149
4
Ciprofloxacin2.4%868
5
Prednisone2.3%834
6
Omeprazole2.1%763
7
Pantoprazole-sodium2.1%756
8
Sulfamethoxazole2.0%718
9
Levofloxacin2.0%718
10
Trimethoprim2.0%710
11
Ibuprofen2.0%707
12
Dexamethasone2.0%704
13
Esomeprazole1.9%690
14
Ceftriaxone-sodium1.9%683
15
Metronidazole1.8%628

Taken alongside

1
Amoxicillin50.2%17,932
2
Acetaminophen17.4%6,216
3
Albuterol9.3%3,330
4
Aspirin9.3%3,324
5
Furosemide9.2%3,294
6
Prednisone8.9%3,177
7
Omeprazole8.5%3,025
8
Levothyroxine-sodium7.5%2,692
9
Ergocalciferol6.9%2,477
10
Ondansetron6.6%2,349
11
Fluticasone6.4%2,290
12
Pantoprazole-sodium6.0%2,132
13
Ibuprofen5.8%2,081
14
Amlodipine5.7%2,029
15
Atorvastatin-calcium5.7%2,025

Co-occurrence in adverse event reports does not establish a drug interaction. Patients often take multiple medications, and these lists reflect prescribing patterns rather than causal relationships. Consult a healthcare provider about potential drug interactions.

Who reports clavulanate side effects

52.7% of clavulanate adverse event reports involve female patients and 41.3% involve male patients. The largest age group is adult at 51%. These figures reflect who reports side effects, not underlying risk.

Sex

Female52.7%
Male41.3%
Unknown6.0%

Age group

< 21.6%
2–113.8%
12–172.0%
18–6451.3%
65+41.3%

What is clavulanate used for

Conditions and purposes for which patients were taking clavulanate when the adverse event was reported.

Abdominal AbscessAbdominal DiscomfortAbdominal InfectionAbdominal OperationAbdominal PainAbdominal Pain LowerAbdominal Wall HaematomaAbortion SpontaneousAbscessAbscess DrainageAbscess JawAbscess LimbAbscess NeckAbscess OralAcarodermatitis

Showing 15 of 1,374 indications

Clavulanate brand names and reporting trend

Clavulanate is sold under the brand name Augmentin '125'.

Brand names

Augmentin '125'2,999

Quarterly reports (20042025)

20052010201520202025

An upward trend reflects increased FAERS reporting overall, not necessarily increased risk.

Taking clavulanate with another medication?

Ask OpenClaim about your specific drug combination. Get a sourced report using FDA data, drug labels, and medical literature.