OpenClaim

Clidinium Side Effects

The most commonly reported side effects of clidinium include diarrhoea, nausea, and fatigue, based on 2,147 FDA adverse event reports from 2004 to 2025. 4.8% of reports found the drug to be ineffective.

Clidinium side effects

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

1
Diarrhoea6.8%145
2
Nausea5.7%123
3
Fatigue5.6%120
4
Drug Ineffective4.8%102
5
Nausea4.1%88
6
Headache4.0%86
7
Off Label Use4.0%85
8
Pain3.5%75
9
Arthralgia3.4%72
10
Abdominal Pain3.2%68
11
Dizziness3.2%68
12
Pain3.1%67
13
Malaise3.1%66
14
Weight Decreased3.0%65
15
Dyspnoea3.0%64

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

Report severity

56.8%Serious1,220 reports
27.8%Hospitalizations596 reports
3.2%Fatal68 reports

Seriousness is determined by the reporter, not by OpenClaim.

Clidinium drug interactions

Other drugs that appear in adverse event reports alongside clidinium. 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
Adalimumab10.5%226
2
Chlordiazepoxide10.2%218
3
Sodium-oxybate3.6%77
4
Esomeprazole3.2%68
5
Omeprazole2.7%57
6
Pregabalin2.3%49
7
Ethinyl-estradiol2.0%44
8
Infliximab2.0%43
9
Teriparatide2.0%43
10
Lenalidomide2.0%42
11
Drospirenone1.9%40
12
Polyethylene-glycol-33501.3%28
13
Certolizumab-pegol1.3%28
14
Acetaminophen1.3%27
15
Naproxen1.2%26

Taken alongside

1
Chlordiazepoxide86.0%1,847
2
Acetaminophen21.1%454
3
Omeprazole16.9%363
4
Levothyroxine-sodium15.1%325
5
Ergocalciferol14.3%307
6
Aspirin12.3%265
7
Esomeprazole11.6%250
8
Pantoprazole-sodium11.0%237
9
Alprazolam10.9%233
10
Albuterol10.0%215
11
Gabapentin9.8%210
12
Prednisone9.6%206
13
Fluticasone9.5%205
14
Atorvastatin-calcium9.5%204
15
Hydrocodone9.2%197

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 clidinium side effects

78.1% of clidinium adverse event reports involve female patients and 18.3% involve male patients. The largest age group is adult at 58%. These figures reflect who reports side effects, not underlying risk.

Sex

Female78.1%
Male18.3%
Unknown3.6%

Age group

< 2<0.1%
2–110.0%
12–170.6%
18–6457.8%
65+41.6%

What is clidinium used for

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

Abdominal AdhesionsAbdominal DiscomfortAbdominal DistensionAbdominal PainAbdominal Pain UpperAbdominal RigidityAbdominal SymptomAccidental OverdoseAlcohol AbuseAnxietyArthritisAbdominal DiscomfortAbdominal DistensionAbdominal PainAbdominal Pain Upper

Showing 15 of 105 indications

Clidinium brand names and reporting trend

Clidinium is sold under the brand name Quarzan.

Brand names

Quarzan105

Quarterly reports (20042025)

20052010201520202025

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

Taking clidinium with another medication?

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