Long qt syndrome and drugs of ingredients of amoxicillin (a real world drug study)


Summary:

Long qt syndrome is found among people who take drugs with ingredients of amoxicillin, especially for people who are male, 60+ old , have been taking the drugs for < 1 month. This phase IV clinical study is created by eHealthMe based on reports of 102,026 people who have side effects when taking drugs with ingredients of amoxicillin from the FDA, and is updated regularly.

Drug(s) considered in the study (i.e. both brand name and generic drugs): Amoxicillin, Amoxicillin pediatric, Amoxil, Dispermox, Larotid, Moxatag, Polymox, Trimox, Utimox, Wymox.


On Jul, 05, 2026

102,026 people reported to have side effects when taking drugs with ingredients of amoxicillin.
Among them, 11 people (0.01%) have Long qt syndrome


What is Long qt syndrome?

Long qt syndrome (disorder of the heart's electrical system) is found to be associated with 217 drugs and 426 conditions by eHealthMe. Check the latest studies of Long qt syndrome.

Number of reports submitted per year:

Could drugs with ingredients of amoxicillin cause Long qt syndrome?

Time on drugs with ingredients of amoxicillin when people have Long qt syndrome *:

  • < 1 month: 100 %
  • 1 - 6 months: 0.0 %
  • 6 - 12 months: 0.0 %
  • 1 - 2 years: 0.0 %
  • 2 - 5 years: 0.0 %
  • 5 - 10 years: 0.0 %
  • 10+ years: 0.0 %

Gender of people who have Long qt syndrome when taking drugs with ingredients of amoxicillin *:

  • female: 22.22 %
  • male: 77.78 %

Age of people who have Long qt syndrome when taking drugs with ingredients of amoxicillin *:

  • 0-1: 25.0 %
  • 2-9: 12.5 %
  • 10-19: 12.5 %
  • 20-29: 0.0 %
  • 30-39: 25.0 %
  • 40-49: 0.0 %
  • 50-59: 0.0 %
  • 60+: 25.0 %

Conditions people have *:

You may use this to check any potential undetected conditions.

  1. Amniotic Cavity Infection: 3 people, 27.27%
  2. Pulmonary Hypertension (increase in blood pressure in the lung artery): 3 people, 27.27%
  3. Pain: 3 people, 27.27%
  4. Back Pain: 2 people, 18.18%
  5. Joint Pain: 2 people, 18.18%
  6. Ureaplasma Infection: 2 people, 18.18%
  7. Gastroenteritis Helicobacter (inflammation of stomach and intestine caused by helicobacter infection): 1 person, 9.09%
  8. 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): 1 person, 9.09%
  9. Bacteraemia (presence of bacteria in the blood): 1 person, 9.09%
  10. Constipation: 1 person, 9.09%

Other drugs people take *:

You may use this to check any potential interacting drugs.

  1. Risperdal: 3 people, 27.27%
  2. Erythromycin: 2 people, 18.18%
  3. Oxycontin: 2 people, 18.18%
  4. Hydrocodone Bitartrate And Acetaminophen: 2 people, 18.18%
  5. Vicodin: 2 people, 18.18%
  6. Seroquel: 2 people, 18.18%
  7. Clarithromycin: 2 people, 18.18%
  8. Digoxin: 1 person, 9.09%
  9. Depakote: 1 person, 9.09%
  10. Calcium Gluconate: 1 person, 9.09%

Other side effects people have besides Long qt syndrome *:

You may use this to check any potential undetected side effects.

  1. Cardiac Arrest: 3 people, 27.27%
  2. Torsade De Pointes (a abnormal heart rate with abnormal beating pattern): 3 people, 27.27%
  3. Cerebral Disorder (brain disease): 3 people, 27.27%
  4. Memory Loss: 3 people, 27.27%
  5. Ventricular Extrasystoles (premature cardiac contraction): 3 people, 27.27%
  6. Unresponsive To Stimuli: 2 people, 18.18%
  7. Fatigue (feeling of tiredness): 2 people, 18.18%
  8. Ventricular Fibrillation (abnormally irregular heart rhythm): 2 people, 18.18%
  9. Arrhythmias (irregular heartbeat): 2 people, 18.18%
  10. Drug Dependence: 2 people, 18.18%

* Approximation only. Some reports may have incomplete information.


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.

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How the study uses the data?

The study uses data from the FDA. It is based on amoxicillin. All drugs that have the same active ingredients (e.g. brand name and generic drugs) are considered. Dosage of drugs is not considered in the study.

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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