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Benzthiazide Side Effects

The most commonly reported side effects of benzthiazide include blood creatinine increased, dyspnoea, and peritonitis bacterial, based on 51 FDA adverse event reports from 2004 to 2025.

Benzthiazide side effects

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

1
Blood Creatinine Increased7.8%4
2
Dyspnoea7.8%4
3
Peritonitis Bacterial5.9%3
4
Abdominal Distension5.9%3
5
Nausea5.9%3
6
Constipation5.9%3
7
Pain5.9%3
8
Vomiting5.9%3
9
Pulmonary Oedema5.9%3
10
Loss Of Consciousness5.9%3
11
Bladder Cancer5.9%3
12
Cardiac Failure Congestive5.9%3
13
Oral Candidiasis5.9%3
14
Platelet Count Decreased5.9%3
15
Neuropathy Peripheral5.9%3

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

Report severity

88.2%Serious45 reports
52.9%Hospitalizations27 reports
9.8%Fatal5 reports

Seriousness is determined by the reporter, not by OpenClaim.

Benzthiazide drug interactions

Other drugs that appear in adverse event reports alongside benzthiazide. 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
Paclitaxel11.8%6
2
Lenalidomide9.8%5
3
Lidocaine7.8%4
4
Bupivacaine7.8%4
5
Valsartan3.9%2
6
Niacin3.9%2
7
Celecoxib3.9%2
8
Spironolactone3.9%2
9
Infliximab2.0%1
10
Irinotecan-hydrochloride2.0%1
11
Fluorouracil2.0%1
12
Glyburide2.0%1
13
Rosiglitazone-maleate2.0%1
14
Insulin2.0%1
15
Icodextrin2.0%1

Taken alongside

1
Lisinopril15.7%8
2
Aspirin13.7%7
3
Amlodipine11.8%6
4
Rosuvastatin11.8%6
5
Levothyroxine-sodium9.8%5
6
Pregabalin9.8%5
7
Furosemide7.8%4
8
Potassium-chloride7.8%4
9
Metoprolol7.8%4
10
Spironolactone7.8%4
11
Indapamide7.8%4
12
Triamterene7.8%4
13
Acyclovir7.8%4
14
Calcium7.8%4
15
Folic-acid5.9%3

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 benzthiazide side effects

58.8% of benzthiazide adverse event reports involve female patients and 35.3% involve male patients. The largest age group is adult at 50%. These figures reflect who reports side effects, not underlying risk.

Sex

Female58.8%
Male35.3%
Unknown5.9%

Age group

< 20.0%
2–110.0%
12–170.0%
18–6450.0%
65+50.0%

What is benzthiazide used for

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

ConstipationConstipationDiuretic TherapyHypertensionOvarian CancerOvarian CancerProduct Used For Unknown Indication

Benzthiazide brand names and reporting trend

Benzthiazide is sold under the brand name Benzthiazide.

Brand names

Benzthiazide12

Quarterly reports (20042025)

200420152025

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

Taking benzthiazide with another medication?

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