Theophyl and Laboratory test abnormal - a phase IV clinical study of FDA data

Summary:

Laboratory test abnormal is reported as a side effect among people who take Theophyl (theophylline), especially for people who are 60+ old, also take Atrovent, and have Asthma.

The phase IV clinical study analyzes which people have Laboratory test abnormal when taking Theophyl. It is created by eHealthMe based on reports of 18,974 people who have side effects when taking Theophyl from the FDA, and is updated regularly.

What is Theophyl?

Theophyl has active ingredients of theophylline. eHealthMe is studying from 19,174 Theophyl users. Check the latest studies of Theophyl.

What is Laboratory test abnormal?

Laboratory test abnormal is found to be associated with 1,199 drugs and 1,589 conditions by eHealthMe. Check the latest studies of Laboratory test abnormal.

On May, 12, 2026

18,974 people reported to have side effects when taking Theophyl.
Among them, 52 people (0.27%) have Laboratory test abnormal.

Could Theophyl cause Laboratory test abnormal?

Among these 52 people:

What is the age of people who have Laboratory test abnormal when taking Theophyl? *

What are other drugs people take besides Theophyl? *

What are other side effects people have besides Laboratory test abnormal? *

Chest Pain: 32 people, 61.54%
Dyspnea (difficult or laboured breathing): 29 people, 55.77%
Wheezing (a high-pitched whistling sound made while you breath): 28 people, 53.85%
Productive Cough: 28 people, 53.85%
Cough: 27 people, 51.92%
Asthma: 26 people, 50.00%
Insomnia (sleeplessness): 26 people, 50.00%
Memory Loss: 26 people, 50.00%
Sputum Discolored: 25 people, 48.08%
Depressed Mood: 25 people, 48.08%

What are the existing conditions these people have? *

Asthma: 28 people, 53.85%
Suicide Attempt: 8 people, 15.38%
Bronchitis (inflammation of the mucous membrane in the bronchial tubes): 2 people, 3.85%
Psoriatic Arthropathy (inflammation of the skin and joints with kin condition which typically causes patches (plaques) of red, scaly skin to develop): 2 people, 3.85%
Heart Rate Irregular: 1 person, 1.92%
Chronic Obstructive Airways Disease: 1 person, 1.92%
Chronic Obstructive Pulmonary Disease (a progressive disease that makes it hard to breathe): 1 person, 1.92%
Deep Venous Thrombosis (blood clot in a major vein that usually develops in the legs and/or pelvis): 1 person, 1.92%
Dizziness: 1 person, 1.92%
Type 1 Diabetes: 1 person, 1.92%

* Approximation only. Some reports may have incomplete information.

Do you take Theophyl and have Laboratory test abnormal?

- Check whether Laboratory test abnormal 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 Theophyl:

Theophyl (19,174 reports)

Browse all side effects of Theophyl:

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 Laboratory test abnormal:

Laboratory test abnormal (1,199 drugs)

Browse all the conditions that are associated with Laboratory test abnormal:

Laboratory test abnormal (1,589 conditions)

Related publications that referenced our studies

Korang-Yeboah M, Rahman Z, Shah D, Mohammad A, Wu S, Siddiqui A, Khan MA, "Impact of formulation and process variables on solid-state stability of theophylline in controlled release formulations", International journal of pharmaceutics, 2016 Feb .
Dhaval MK, "Impact of formulation and process variables on solid-state stability of theophylline in controlled release formulations", International Journal of Pharmaceutics, 2016 Jan .
Korang-Yeboah M, Rahman Z, Shah D, Mohammad A, Wu S, Siddiqui A, Khan MA, "Impact of formulation and process variables on solid-state stability of theophylline in controlled release formulations", International journal of pharmaceutics, 2016 Feb .
Dhaval MK, "Impact of formulation and process variables on solid-state stability of theophylline in controlled release formulations", International Journal of Pharmaceutics, 2016 Jan .

How the study uses the data?

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