Optivar and Syncope aggravated - a phase IV clinical study of FDA data

Summary:

Syncope aggravated is reported as a side effect among people who take Optivar (azelastine hydrochloride), especially for people who are male, 60+ old, also take Doxycycline, and have Muscle spasms.

The phase IV clinical study analyzes which people have Syncope aggravated when taking Optivar. It is created by eHealthMe based on reports of 361 people who have side effects when taking Optivar from the FDA, and is updated regularly.

What is Optivar?

Optivar has active ingredients of azelastine hydrochloride. eHealthMe is studying from 367 Optivar users. Check the latest studies of Optivar.

What is Syncope aggravated?

Syncope aggravated (a loss of consciousness with an inability to maintain postural tone) is found to be associated with 1,690 drugs and 590 conditions by eHealthMe. Check the latest studies of Syncope aggravated.

eHealthMe: drug outcomes in the real world

eHealthMe runs one of the largest post-marketing drug safety studies in the world. We study millions of patients and 5,000 more each day. Our data-driven phase IV clinical trials have been referenced on 800+ peer-reviewed medical publications including The Lancet, Mayo Clinic Proceedings, and Nature. Tools to study our phase IV findings are available to the public, anonymous and free >>>.

On Sep, 01, 2026

361 people reported to have side effects when taking Optivar.
Among them, 13 people (3.6%) have Syncope aggravated.

Among these 13 people:

What is the gender of people who have Syncope aggravated when taking Optivar? *

female: 23.08 %
male: 76.92 %

What is the age of people who have Syncope aggravated when taking Optivar? *

What are other drugs people take besides Optivar? *

What are other side effects people have besides Syncope aggravated? *

Confusional State: 12 people, 92.31%
Coronary Heart Disease (narrowing or blockage of the coronary arteries): 11 people, 84.62%
Deep Venous Thrombosis (blood clot in a major vein that usually develops in the legs and/or pelvis): 11 people, 84.62%
Dysaesthesia (abnormal sensation): 11 people, 84.62%
Dyspnea (difficult or laboured breathing): 11 people, 84.62%
Ejection Fraction Decreased (systolic heart failure): 11 people, 84.62%
Enlarged Heart: 11 people, 84.62%
Fall: 11 people, 84.62%
Gastroesophageal Reflux Disease (a condition in which stomach contents leak backward from the stomach into the oesophagus): 11 people, 84.62%
Gingivitis (inflammation of gums): 11 people, 84.62%

What are the existing conditions these people have? *

Toothaches (tooth pain): 11 people, 84.62%
Muscle Spasms (muscle contraction): 11 people, 84.62%
Depression: 4 people, 30.77%
Bone Neoplasm Malignant (cancer of bone): 3 people, 23.08%
Pseudomonas Infection (pseudomonas infection is caused by a bacterium, pseudomonas aeruginosa): 1 person, 7.69%
Premenstrual Syndrome: 1 person, 7.69%
Pain: 1 person, 7.69%
Migraine (headache): 1 person, 7.69%
Infection: 1 person, 7.69%
Epilepsy (common and diverse set of chronic neurological disorders characterized by seizures): 1 person, 7.69%

* Approximation only. Some reports may have incomplete information.

Do you take Optivar and have Syncope aggravated?

- Check whether Syncope aggravated is associated with a drug or a condition
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Related studies:

Effectiveness of, long term effects of, and alternative drugs to Optivar:

Optivar (367 reports)

Browse all side effects of Optivar:

a b c d e f g h i j k l m n o p q r s t u v w x y z

Browse all the drugs that are associated with Syncope aggravated:

Syncope aggravated (1,690 drugs)

Browse all the conditions that are associated with Syncope aggravated:

Syncope aggravated (590 conditions)

How the study uses the data?

The study uses data from the FDA. It is based on azelastine hydrochloride (the active ingredients of Optivar) and Optivar (the brand name). Other drugs that have the same active ingredients (e.g. generic drugs) are not considered. Dosage of drugs is not considered in the study.

How to use the study?

DO NOT STOP MEDICATIONS without first consulting your doctor. If there are any serious or long term adverse effects discovered in the study, discuss the study with your doctor to ensure that proper medication management will be in place if applicable.

Who is eHealthMe?

With medical big data and proven AI/ML algorithms, eHealthMe provides a platform for everyone to run phase IV clinical trials. We study millions of patients and 5,000 more each day. Results of our real-world drug study have been referenced on 800+ peer-reviewed medical publications, including The Lancet, Mayo Clinic Proceedings, and Nature. Our analysis results are available to researchers, health care professionals, patients (testimonials), and software developers (open API).

WARNING, DISCLAIMER, USE FOR PUBLICATION

WARNING: Please DO NOT STOP MEDICATIONS without first consulting a physician since doing so could be hazardous to your health.

DISCLAIMER: All material available on eHealthMe.com is for informational purposes only, and is not a substitute for medical advice, diagnosis, or treatment provided by a qualified healthcare provider. All information is observation-only. Our phase IV clinical studies alone cannot establish cause-effect relationship. Different individuals may respond to medication in different ways. Every effort has been made to ensure that all information is accurate, up-to-date, and complete, but no guarantee is made to that effect. The use of the eHealthMe site and its content is at your own risk.

If you use this eHealthMe study on publication, please acknowledge it with a citation: study title, URL, accessed date.