OpenClaim

Nimodipine Side Effects

The most commonly reported side effects of nimodipine include off label use, hypotension, and subarachnoid haemorrhage, based on 1,399 FDA adverse event reports from 2004 to 2025. 5.6% of reports found the drug to be ineffective.

Nimodipine side effects

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

1
Off Label Use5.8%81
2
Drug Ineffective5.6%79
3
Hypotension3.9%54
4
Subarachnoid Haemorrhage2.9%40
5
Headache2.6%37
6
Reversible Cerebral Vasoconstriction Syndrome2.2%31
7
Cholestasis2.2%31
8
Pyrexia2.1%30
9
Renal Failure2.1%30
10
Vomiting2.1%30
11
Toxicity To Various Agents2.1%30
12
Lactic Acidosis2.1%29
13
Confusional State2.1%29
14
Diarrhoea2.1%29
15
Dizziness2.0%28

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

Report severity

90.1%Serious1,261 reports
44.4%Hospitalizations621 reports
10.7%Fatal150 reports

Seriousness is determined by the reporter, not by OpenClaim.

Nimodipine drug interactions

Other drugs that appear in adverse event reports alongside nimodipine. 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
Levetiracetam7.9%110
2
Acetaminophen6.9%96
3
Enoxaparin-sodium4.9%68
4
Propofol4.3%60
5
Epinephrine4.3%60
6
Midazolam4.2%59
7
Omeprazole3.8%53
8
Sufentanil-citrate3.5%49
9
Ranitidine3.5%49
10
Heparin3.2%45
11
Metformin3.2%45
12
Simvastatin2.8%39
13
Amoxicillin2.8%39
14
Valsartan2.6%36
15
Risperidone2.5%35

Taken alongside

1
Aspirin8.8%123
2
Omeprazole7.9%110
3
Acetaminophen7.1%100
4
Simvastatin5.7%80
5
Atorvastatin-calcium4.9%69
6
Propofol4.7%66
7
Metoprolol4.1%58
8
Amlodipine4.1%57
9
Metformin4.1%57
10
Heparin4.0%56
11
Levetiracetam3.9%55
12
Levothyroxine-sodium3.6%51
13
Furosemide3.6%50
14
Dexamethasone3.4%47
15
Pantoprazole-sodium3.4%47

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 nimodipine side effects

58.0% of nimodipine adverse event reports involve female patients and 30.8% involve male patients. The largest age group is adult at 58%. These figures reflect who reports side effects, not underlying risk.

Sex

Female58.0%
Male30.8%
Unknown11.2%

Age group

< 22.1%
2–110.8%
12–171.6%
18–6457.7%
65+37.8%

What is nimodipine used for

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

Affective DisorderAmnesiaAneurysmAneurysm RepairAneurysm RupturedAortic AneurysmArrhythmiaArterial Occlusive DiseaseArterial SpasmArteriogramAffective DisorderArterial SpasmArteriosclerosisArteriospasm CoronaryBipolar Disorder

Showing 15 of 157 indications

Nimodipine brand names and reporting trend

Nimodipine is sold under the brand name Nimotop.

Brand names

Nimotop1,192

Quarterly reports (20042025)

20052010201520202025

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

Taking nimodipine with another medication?

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