OpenClaim

Rimantadine Side Effects

The most commonly reported side effects of rimantadine include cough, nausea, and fall, based on 171 FDA adverse event reports from 2004 to 2025. 4.1% of reports found the drug to be ineffective.

Rimantadine side effects

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

1
Cough7.0%12
2
Nausea4.7%8
3
Fall4.7%8
4
Arthralgia4.7%8
5
Dizziness4.7%8
6
Headache4.1%7
7
Headache4.1%7
8
Hypertension4.1%7
9
Dyspnoea4.1%7
10
Drug Ineffective4.1%7
11
Death4.1%7
12
Asthenia4.1%7
13
Malaise4.1%7
14
Renal Failure3.5%6
15
Diarrhoea3.5%6

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

Report severity

70.2%Serious120 reports
36.3%Hospitalizations62 reports
13.5%Fatal23 reports

Seriousness is determined by the reporter, not by OpenClaim.

Rimantadine drug interactions

Other drugs that appear in adverse event reports alongside rimantadine. 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
Levodopa9.4%16
2
Oseltamivir-phosphate7.0%12
3
Carbidopa6.4%11
4
Zanamivir4.1%7
5
Pimavanserin4.1%7
6
Acetaminophen3.5%6
7
Azithromycin2.9%5
8
Ponatinib-hydrochloride2.9%5
9
Rivastigmine2.9%5
10
Dupilumab2.9%5
11
Enfuvirtide2.3%4
12
Pantoprazole-sodium2.3%4
13
Omeprazole2.3%4
14
Aztreonam2.3%4
15
Paroxetine1.8%3

Taken alongside

1
Ergocalciferol15.2%26
2
Fluticasone15.2%26
3
Albuterol14.6%25
4
Aspirin14.0%24
5
Acetaminophen14.0%24
6
Levothyroxine-sodium14.0%24
7
Omeprazole13.5%23
8
Carbidopa13.5%23
9
Levodopa13.5%23
10
Gabapentin13.5%23
11
Sulfamethoxazole10.5%18
12
Trimethoprim10.5%18
13
Prednisone9.9%17
14
Calcium9.9%17
15
Acyclovir9.4%16

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 rimantadine side effects

50.3% of rimantadine adverse event reports involve female patients and 42.1% involve male patients. The largest age group is adult at 54%. These figures reflect who reports side effects, not underlying risk.

Sex

Female50.3%
Male42.1%
Unknown7.6%

Age group

< 20.9%
2–112.7%
12–173.6%
18–6454.5%
65+38.4%

What is rimantadine used for

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

Antiviral ProphylaxisAntiviral TreatmentArthritisAvian InfluenzaDrug Use For Unknown IndicationDyspepsiaGastrooesophageal Reflux DiseaseH1n1 InfluenzaHypertensionInfluenzaNasopharyngitisParkinson^s DiseasePharyngitis StreptococcalPremedicationProduct Used For Unknown Indication

Showing 15 of 21 indications

Rimantadine brand names and reporting trend

Rimantadine is sold under the brand name Flumadine.

Brand names

Flumadine11

Quarterly reports (20042025)

2005201520202025

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

Taking rimantadine with another medication?

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