Pataday and Purulent discharge - a phase IV clinical study of FDA data


Purulent discharge is reported only by a few people who take Pataday.

The phase IV clinical study analyzes which people take Pataday and have Purulent discharge. It is created by eHealthMe based on reports of 7,354 people who have side effects while taking Pataday from the FDA, and is updated regularly.

Phase IV trials are used to detect adverse drug outcomes and monitor drug effectiveness in the real world. With medical big data and AI algorithms, eHealthMe is running millions of phase IV trials and makes the results available to the public. Our original studies have been referenced on 600+ medical publications including The Lancet, Mayo Clinic Proceedings, and Nature.

On Aug, 19, 2022

7,354 people reported to have side effects when taking Pataday.
Among them, 4 people (0.05%) have Purulent discharge.

What is Pataday?

Pataday has active ingredients of olopatadine hydrochloride. It is often used in allergies. eHealthMe is studying from 6,561 Pataday users for its effectiveness, alternative drugs and more.

What is Purulent discharge?

Purulent discharge (discharge that contains pus) is found to be associated with 1,134 drugs and 674 conditions by eHealthMe.

Number of Pataday and Purulent discharge reports submitted per year:

Could Pataday cause Purulent discharge?

Gender of people who have Purulent discharge when taking Pataday *:

  • female: 100 %
  • male: 0.0 %

Age of people who have Purulent discharge when taking Pataday *:

  • 0-1: 0.0 %
  • 2-9: 0.0 %
  • 10-19: 0.0 %
  • 20-29: 0.0 %
  • 30-39: 0.0 %
  • 40-49: 0.0 %
  • 50-59: 100 %
  • 60+: 0.0 %

Common drugs people take besides Pataday *:

  1. Xolair: 2 people, 50.00%
  2. Ventolin Hfa: 2 people, 50.00%
  3. Symbicort: 2 people, 50.00%
  4. Prozac: 2 people, 50.00%
  5. Patanase: 2 people, 50.00%
  6. Nexium: 2 people, 50.00%
  7. Zyrtec: 1 person, 25.00%
  8. Ketotifen Fumarate: 1 person, 25.00%
  9. Albuterol Sulfate: 1 person, 25.00%
  10. Amphotericin B: 1 person, 25.00%

Common side effects people have besides Purulent discharge *:

  1. Itching: 3 people, 75.00%
  2. Cough: 3 people, 75.00%
  3. Oropharyngeal Pain: 3 people, 75.00%
  4. Wheezing (a high-pitched whistling sound made while you breath): 2 people, 50.00%
  5. Breath Sounds Abnormal: 2 people, 50.00%
  6. Eye Pruritus (eye itching): 2 people, 50.00%
  7. Insomnia (sleeplessness): 2 people, 50.00%
  8. Dyspnea Exertional: 2 people, 50.00%
  9. Depression: 2 people, 50.00%
  10. Musculoskeletal Discomfort (discomfort in the body's muscles, joints, tendons, ligaments and nerves): 2 people, 50.00%

Common conditions people have *:

  1. Asthma: 2 people, 50.00%
  2. Urinary Tract Infection Bacterial: 1 person, 25.00%
  3. Parkinson's Disease: 1 person, 25.00%
  4. Conjunctivitis Bacterial (infection of conjunctiva by bacteria): 1 person, 25.00%
  5. Bipolar Disorder (mood disorder): 1 person, 25.00%
  6. Anaesthesia: 1 person, 25.00%

* Approximation only. Some reports may have incomplete information.

Do you take Pataday and have Purulent discharge?

Check whether Purulent discharge is associated with a drug or a condition

How to use the study?

You can discuss the study with your doctor, to ensure that all drug risks and benefits are fully discussed and understood.

Related studies

How severe was Purulent discharge and when was it recovered:

Expand to all the drugs that have ingredients of olopatadine hydrochloride:

Alternative drugs to, pros and cons of Pataday:

Common Pataday side effects:

Browse all side effects of Pataday:

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

Purulent discharge treatments and more:

COVID vaccines that are related to Purulent discharge:

Common drugs associated with Purulent discharge:

All the drugs that are associated with Purulent discharge:

Common conditions associated with Purulent discharge:

All the conditions that are associated with Purulent discharge:

How the study uses the data?

The study uses data from the FDA. It is based on olopatadine hydrochloride (the active ingredients of Pataday) and Pataday (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.

Who is eHealthMe?

With medical big data and proven AI 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 600+ 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: Please DO NOT STOP MEDICATIONS without first consulting a physician since doing so could be hazardous to your health.

DISCLAIMER: All material available on 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.

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