Tessalon and Vision blurred - a phase IV clinical study of FDA data

Summary:

Vision blurred is reported as a side effect among people who take Tessalon (benzonatate), especially for people who are female, 60+ old, have been taking the drug for < 1 month also take Prilosec, and have Multiple myeloma.

The phase IV clinical study analyzes which people have Vision blurred when taking Tessalon. It is created by eHealthMe based on reports of 6,327 people who have side effects when taking Tessalon from the FDA, and is updated regularly.

What is Tessalon?

Tessalon has active ingredients of benzonatate. It is often used in cough. eHealthMe is studying from 6,493 Tessalon users. Check the latest studies of Tessalon.

What is Vision blurred?

Vision blurred is found to be associated with 2,495 drugs and 2,969 conditions by eHealthMe. Check the latest studies of Vision blurred.

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 Aug, 31, 2026

6,327 people reported to have side effects when taking Tessalon.
Among them, 77 people (1.22%) have Vision blurred.

Among these 77 people:

How long have people been on Tessalon when they have Vision blurred? *

What is the gender of people who have Vision blurred when taking Tessalon? *

female: 59.46 %
male: 40.54 %

What is the age of people who have Vision blurred when taking Tessalon? *

What are other drugs people take besides Tessalon? *

What are other side effects people have besides Vision blurred? *

Pain: 46 people, 59.74%
Stress And Anxiety: 44 people, 57.14%
Back Pain: 40 people, 51.95%
Headache (pain in head): 39 people, 50.65%
Chronic Obstructive Pulmonary Disease (a progressive disease that makes it hard to breathe): 38 people, 49.35%
Pain In Extremity: 37 people, 48.05%
Spinal Osteoarthritis (joint cartilage loss in spine): 35 people, 45.45%
Osteonecrosis Of Jaw (death of bone of jaw): 35 people, 45.45%
Hypoaesthesia (reduced sense of touch or sensation): 35 people, 45.45%
Intervertebral Disc Degeneration (spinal disc degeneration): 32 people, 41.56%

What are the existing conditions these people have? *

Multiple Myeloma (cancer of the plasma cells): 26 people, 33.77%
Osteoporosis (bones weak and more likely to break): 9 people, 11.69%
Pain: 8 people, 10.39%
High Blood Cholesterol: 8 people, 10.39%
High Blood Pressure: 7 people, 9.09%
Bone Density Abnormal: 7 people, 9.09%
Muscle Spasms (muscle contraction): 6 people, 7.79%
Sleep Disorder: 4 people, 5.19%
Polycythaemia Vera (blood disorder in which the bone marrow makes too many red blood cells): 4 people, 5.19%
Pneumonia: 3 people, 3.90%

* Approximation only. Some reports may have incomplete information.

Do you take Tessalon and have Vision blurred?

- Check whether Vision blurred is associated with a drug or a condition
- Predict drug outcomes for up to one year with AI
- Get an AI agent to monitor your drugs continuously

Related studies:

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

Tessalon (6,493 reports)

Vision blurred treatments and more:

Vision blurred (154,118 reports)

Browse all side effects of Tessalon:

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 Vision blurred:

Vision blurred (2,495 drugs)

Browse all the conditions that are associated with Vision blurred:

Vision blurred (2,969 conditions)

How the study uses the data?

The study uses data from the FDA. It is based on benzonatate (the active ingredients of Tessalon) and Tessalon (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.