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Epinastine Side Effects

The most commonly reported side effects of epinastine include treatment failure, pyrexia, and diarrhoea, based on 2,327 FDA adverse event reports from 2004 to 2025. 5.3% of reports found the drug to be ineffective.

Epinastine side effects

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

1
Treatment Failure28.4%661
2
Drug Ineffective5.3%124
3
Pyrexia3.2%75
4
Diarrhoea3.2%74
5
Pneumonia2.9%67
6
Off Label Use2.9%67
7
Rash2.6%61
8
Decreased Appetite2.4%57
9
Anaemia2.1%50
10
Malaise2.1%49
11
Dyspnoea2.1%48
12
Nausea1.9%45
13
Headache1.8%42
14
Pruritus1.7%39
15
Vomiting1.5%34

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

Report severity

58.8%Serious1,369 reports
31.0%Hospitalizations721 reports
10.9%Fatal254 reports

Seriousness is determined by the reporter, not by OpenClaim.

Epinastine drug interactions

Other drugs that appear in adverse event reports alongside epinastine. 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
Azelastine25.3%589
2
Olopatadine-hydrochloride24.5%571
3
Ketotifen-fumarate23.0%536
4
Cromolyn-sodium11.0%256
5
Ketorolac-tromethamine6.4%149
6
Prednisolone2.8%64
7
Methylprednisolone2.5%58
8
Nivolumab2.1%49
9
Adalimumab1.5%36
10
Omalizumab1.5%36
11
Lenalidomide1.2%28
12
Dupilumab1.2%27
13
Meropenem0.9%22
14
Paclitaxel0.9%20
15
Dexamethasone0.8%19

Taken alongside

1
Amlodipine8.1%188
2
Montelukast-sodium6.7%157
3
Acetaminophen6.7%156
4
Furosemide6.7%155
5
Aspirin6.6%153
6
Lansoprazole6.3%147
7
Fluticasone5.6%131
8
Magnesium-oxide5.2%122
9
Prednisone5.1%118
10
Prednisolone5.0%117
11
Atorvastatin-calcium4.5%105
12
Famotidine4.4%102
13
Albuterol4.3%101
14
Levothyroxine-sodium4.3%101
15
Esomeprazole4.3%100

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 epinastine side effects

53.5% of epinastine adverse event reports involve female patients and 41.8% involve male patients. The largest age group is elderly at 53%. These figures reflect who reports side effects, not underlying risk.

Sex

Female53.5%
Male41.8%
Unknown4.7%

Age group

< 20.9%
2–112.7%
12–172.1%
18–6441.6%
65+52.7%

What is epinastine used for

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

Acute Lung InjuryAcute Respiratory Distress SyndromeAdverse EventAllergy ProphylaxisAlopecia AreataAnalgesic Asthma SyndromeAntiallergic TherapyAntifungal ProphylaxisArthropod StingAsthmaAtopyAcarodermatitisAdverse EventAllergy ProphylaxisAngioedema

Showing 15 of 167 indications

Epinastine brand names and reporting trend

Quarterly reports (20042025)

20052010201520202025

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

Taking epinastine with another medication?

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