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Carbachol Side Effects

The most commonly reported side effects of carbachol include endophthalmitis, blood pressure decreased, and nausea, based on 162 FDA adverse event reports from 2004 to 2025. 9.3% of reports found the drug to be ineffective.

Carbachol side effects

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

1
Endophthalmitis14.2%23
2
Blood Pressure Decreased9.3%15
3
Drug Ineffective9.3%15
4
Nausea8.6%14
5
Nasopharyngitis8.6%14
6
Asthma8.0%13
7
Visual Acuity Reduced7.4%12
8
Pneumonia7.4%12
9
Dyspnoea7.4%12
10
Productive Cough7.4%12
11
Chest X-ray Abnormal6.8%11
12
Mitral Valve Stenosis6.8%11
13
Oedema Peripheral6.8%11
14
Atrial Fibrillation6.8%11
15
Ill-defined Disorder6.8%11

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

Report severity

78.4%Serious127 reports
19.8%Hospitalizations32 reports
1.9%Fatal3 reports

Seriousness is determined by the reporter, not by OpenClaim.

Carbachol drug interactions

Other drugs that appear in adverse event reports alongside carbachol. 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
Calcium-chloride17.3%28
2
Potassium-chloride17.3%28
3
Sodium-chloride17.3%28
4
Magnesium-chloride14.2%23
5
Sodium-acetate13.6%22
6
Sodium-citrate13.6%22
7
Mepolizumab6.8%11
8
Tiotropium-bromide6.8%11
9
Ciclesonide6.8%11
10
Albuterol6.8%11
11
Montelukast-sodium6.8%11
12
Dextrose4.3%7
13
Glutathione-disulfide4.3%7
14
Sodium-bicarbonate4.3%7
15
Sodium-phosphate4.3%7

Taken alongside

1
Lidocaine21.0%34
2
Epinephrine13.6%22
3
Potassium-chloride13.0%21
4
Sodium-chloride11.7%19
5
Calcium-chloride11.1%18
6
Magnesium-chloride11.1%18
7
Sodium-acetate11.1%18
8
Sodium-citrate11.1%18
9
Diltiazem9.9%16
10
Timolol8.6%14
11
Levothyroxine-sodium8.6%14
12
Risedronate-sodium8.6%14
13
Pantoprazole-sodium8.0%13
14
Midazolam8.0%13
15
Fentanyl7.4%12

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 carbachol side effects

45.1% of carbachol adverse event reports involve female patients and 33.3% involve male patients. The largest age group is elderly at 66%. These figures reflect who reports side effects, not underlying risk.

Sex

Female45.1%
Male33.3%
Unknown21.6%

Age group

< 20.0%
2–111.6%
12–170.0%
18–6432.3%
65+66.1%

What is carbachol used for

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

Adjuvant TherapyBlood Pressure IncreasedCataract OperationIntraocular Lens ImplantIntraocular Pressure DecreasedIntraoperative CareIntraocular Lens ImplantMiosisMiosisPostoperative CarePreoperative CareProcedural ComplicationProduct Used For Unknown IndicationProduct Used For Unknown Indication

Carbachol brand names and reporting trend

Carbachol is sold under the brand name Carbachol.

Brand names

Carbachol83

Quarterly reports (20042025)

20042010201520202025

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

Taking carbachol with another medication?

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