Levaquin and Weight fluctuation - a phase IV clinical study of FDA data

Summary:

Weight fluctuation is reported as a side effect among people who take Levaquin (levofloxacin), especially for people who are female, 60+ old, have been taking the drug for < 1 month also take Magnesium, and have Multiple myeloma.

The phase IV clinical study analyzes which people have Weight fluctuation when taking Levaquin. It is created by eHealthMe based on reports of 54,998 people who have side effects when taking Levaquin from the FDA, and is updated regularly.

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.

What is Weight fluctuation?

Weight fluctuation is found to be associated with 897 drugs and 1,030 conditions by eHealthMe. Check the latest studies of Weight fluctuation.

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, 17, 2026

54,998 people reported to have side effects when taking Levaquin.
Among them, 50 people (0.09%) have Weight fluctuation.

Could Levaquin cause Weight fluctuation?

Among these 50 people:

How long have people been on Levaquin when they have Weight fluctuation? *

What is the gender of people who have Weight fluctuation when taking Levaquin? *

female: 56.52 %
male: 43.48 %

What is the age of people who have Weight fluctuation when taking Levaquin? *

What are other drugs people take besides Levaquin? *

What are other side effects people have besides Weight fluctuation? *

Rashes (redness): 13 people, 26.00%
Weakness: 13 people, 26.00%
Appetite - Decreased (decreased appetite occurs when you have a reduced desire to eat): 11 people, 22.00%
Pain: 10 people, 20.00%
Back Pain: 10 people, 20.00%
Joint Pain: 10 people, 20.00%
Urinary Tract Infection: 9 people, 18.00%
Feeling Abnormal: 9 people, 18.00%
Chest Pain: 9 people, 18.00%
Dizziness: 9 people, 18.00%

What are the existing conditions these people have? *

Multiple Myeloma (cancer of the plasma cells): 10 people, 20.00%
Pain: 5 people, 10.00%
Birth Control: 4 people, 8.00%
Thrombosis (formation of a blood clot inside a blood vessel): 4 people, 8.00%
Depression: 4 people, 8.00%
High Blood Pressure: 4 people, 8.00%
Wheezing (a high-pitched whistling sound made while you breath): 3 people, 6.00%
Asthma: 3 people, 6.00%
Atrial Fibrillation/flutter (atrial fibrillation and flutter are abnormal heart rhythms in which the atria, or upper chambers of the heart, are out of sync with the ventricles): 3 people, 6.00%
Breast Cancer: 3 people, 6.00%

* Approximation only. Some reports may have incomplete information.

Do you take Levaquin and have Weight fluctuation?

- Check whether Weight fluctuation 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 Levaquin:

Levaquin (56,638 reports)

Browse 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 z

Browse all the drugs that are associated with Weight fluctuation:

Weight fluctuation (897 drugs)

Browse all the conditions that are associated with Weight fluctuation:

Weight fluctuation (1,030 conditions)

Related publications that referenced our studies

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 .
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 levofloxacin (the active ingredients of Levaquin) and Levaquin (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.