Theophyl and Levaquin drug interactions - a phase IV clinical study of FDA data
Summary:
Drug interactions are reported among people who take Theophyl (theophylline) and Levaquin (levofloxacin). Common drug interactions include back pain among females and dyspnoea among males.
The phase IV clinical study analyzes what interactions people have when they take Theophyl and Levaquin. It is created by eHealthMe based on reports of 269 people who take the same drugs 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 Levaquin?
Levaquin has active ingredients of levofloxacin. It is often used in sinusitis. eHealthMe is studying from 56,638 Levaquin users. Check the latest studies of Levaquin.
269 people who take Theophyl and Levaquin together, and have interactions are studied.

What are the common drug interactions of Theophyl and Levaquin, by gender? *
What are the common drug interactions of Theophyl and Levaquin, by age (0-1 to 60+)? *
What are the existing conditions these people have? *
* Approximation only. Some reports may have incomplete information.
Do you take Theophyl and Levaquin?
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Related studies:
Effectiveness of, side effects of, and alternative drugs to the 2 drugs:
Browse all drug interactions of Theophyl and Levaquin:
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 zSub-studies by gender and age:
Female: 0-1 2-9 10-19 20-29 30-39 40-49 50-59 60+
Male: 0-1 2-9 10-19 20-29 30-39 40-49 50-59 60+
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 zBrowse all side effects of Levaquin:
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 zBrowse all interactions between Theophyl and drugs from A to Z:
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 zBrowse all interactions between Levaquin and drugs from A to Z:
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 zRelated 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 .
- Bhuvan KC, ALrasheedy AA, Ibrahim MI, "A case report from Nepalese community pharmacy on levofloxacin induced severe abdominal pain", Saudi Pharmaceutical Journal, 2013 Jul .
- MITTAL V, ARCHANA D, GUPTA A, SRIVASTAV U, CHANDRA V, SAXENA A, AGRAWAL P, "Aphasia: a Rarest Complication with a Well Known Drug Levofloxacin", Medical Science, 2013 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 .
- Bhuvan KC, ALrasheedy AA, Ibrahim MI, "A case report from Nepalese community pharmacy on levofloxacin induced severe abdominal pain", Saudi Pharmaceutical Journal, 2013 Jul .
- MITTAL V, ARCHANA D, GUPTA A, SRIVASTAV U, CHANDRA V, SAXENA A, AGRAWAL P, "Aphasia: a Rarest Complication with a Well Known Drug Levofloxacin", Medical Science, 2013 Jan .
How the study uses the data?
The study uses data from the FDA. It is based on theophylline and levofloxacin (the active ingredients of Theophyl and Levaquin, respectively), and Theophyl and Levaquin (the brand names). 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.
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