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Azatadine Side Effects

The most commonly reported side effects of azatadine include drug hypersensitivity, dyspnoea, and off label use, based on 45 FDA adverse event reports from 2004 to 2025.

Azatadine side effects

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

1
Drug Hypersensitivity22.2%10
2
Dyspnoea8.9%4
3
Off Label Use8.9%4
4
Cardiac Failure Congestive6.7%3
5
Coronary Artery Disease6.7%3
6
Dizziness6.7%3
7
Nausea6.7%3
8
Constipation4.4%2
9
Sinusitis4.4%2
10
Weight Decreased4.4%2
11
Asthenia4.4%2
12
Movement Disorder4.4%2
13
Depression4.4%2
14
Fall4.4%2
15
Anxiety4.4%2

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

Report severity

62.2%Serious28 reports
33.3%Hospitalizations15 reports
15.6%Fatal7 reports

Seriousness is determined by the reporter, not by OpenClaim.

Azatadine drug interactions

Other drugs that appear in adverse event reports alongside azatadine. 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
Pseudoephedrine24.4%11
2
Labetalol-hydrochloride8.9%4
3
Ramipril8.9%4
4
Propranolol-hydrochloride8.9%4
5
Verapamil-hydrochloride8.9%4
6
Doxazosin-mesylate8.9%4
7
Clonidine8.9%4
8
Diltiazem8.9%4
9
Losartan-potassium8.9%4
10
Felodipine8.9%4
11
Undecoylium-chloride-iodine-complex8.9%4
12
Terazosin-hydrochloride8.9%4
13
Acebutolol-hydrochloride8.9%4
14
Clopidogrel-bisulfate8.9%4
15
Irbesartan8.9%4

Taken alongside

1
Pseudoephedrine20.0%9
2
Levothyroxine-sodium17.8%8
3
Acetaminophen15.6%7
4
Atorvastatin-calcium8.9%4
5
Alprazolam8.9%4
6
Albuterol8.9%4
7
Prednisone8.9%4
8
Aspirin8.9%4
9
Tramadol-hydrochloride8.9%4
10
Hydrochlorothiazide6.7%3
11
Nitrofurantoin6.7%3
12
Metformin6.7%3
13
Celecoxib6.7%3
14
Furosemide6.7%3
15
Hydrocodone6.7%3

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 azatadine side effects

66.7% of azatadine adverse event reports involve female patients and 26.7% involve male patients. The largest age group is adult at 49%. These figures reflect who reports side effects, not underlying risk.

Sex

Female66.7%
Male26.7%
Unknown6.7%

Age group

< 20.0%
2–112.9%
12–170.0%
18–6448.6%
65+48.6%

What is azatadine used for

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

Acute Myeloid Leukaemia RecurrentBone PainDrug Use For Unknown IndicationGastrooesophageal Reflux DiseaseIdiopathic Thrombocytopenic PurpuraMiddle Ear EffusionProduct Used For Unknown IndicationProduct Used For Unknown IndicationSinusitisVitamin Supplementation

Azatadine brand names and reporting trend

Azatadine is sold under the brand name Optimine.

Brand names

Optimine21

Quarterly reports (20042025)

200420102025

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

Taking azatadine with another medication?

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