Quinidex and Aspirin drug interactions - a phase IV clinical study of FDA data

Summary:

Drug interactions are reported among people who take Quinidex (quinidine sulfate) and Aspirin (aspirin). Common drug interactions include vitreous haemorrhage among females and cardiac failure congestive among males.

The phase IV clinical study analyzes what interactions people have when they take Quinidex and Aspirin. It is created by eHealthMe based on reports of 18 people who take the same drugs from the FDA, and is updated regularly.

What is Quinidex?

Quinidex has active ingredients of quinidine sulfate. eHealthMe is studying from 114 Quinidex users. Check the latest studies of Quinidex.

What is Aspirin?

Aspirin has active ingredients of aspirin. It is often used in blood clots. eHealthMe is studying from 632,088 Aspirin users. Check the latest studies of Aspirin.



On Jul, 24, 2026

18 people who take Quinidex and Aspirin together, and have interactions are studied.

Quinidex and Aspirin drug interactions.

What are the common drug interactions of Quinidex and Aspirin, by gender? *:

female:

  1. Vitreous haemorrhage (intraocular (inside the eye) bleeding)
  2. Dyspnoea (difficult or laboured respiration)
  3. Nausea (feeling of having an urge to vomit)
  4. Oedema peripheral (superficial swelling)
  5. Retinal tear
  6. Vomiting
  7. Cardiac disorder
  8. Dehydration (dryness resulting from the removal of water)
  9. Heart rate decreased
  10. Influenza like illness

male:

  1. Cardiac failure congestive
  2. Gait disturbance
  3. Pericarditis (inflammation of the pericardium)
  4. Speech disorder
  5. Alopecia (absence of hair from areas of the body)
  6. Diabetes mellitus (diabetes, caused by a deficiency of the pancreatic hormone insulin)
  7. Pleural effusion (water on the lungs)
  8. Pulmonary hilum mass (lung cancer)
  9. Multiple injuries
  10. Arteriosclerosis (thickening and hardening of arteries)

What are the common drug interactions of Quinidex and Aspirin, by age (0-1 to 60+)? *:

0-1:

n/a

2-9:

n/a

10-19:

n/a

20-29:

n/a

30-39:

n/a

40-49:

  1. Angina pectoris (chest pain due to ischemia of the heart muscle)
  2. Angina unstable (chest pain due to ischemia of the heart muscle- unstable)
  3. Asthenia (weakness)
  4. Bronchitis (inflammation of the mucous membrane in the bronchial tubes)
  5. Bundle branch block left (absence of transmission of electric impulses from the atrioventricular (av) bundle of his to the left ventricle)
  6. Cardiac disorder
  7. Cardiac failure chronic
  8. Cardiac valve disease (heart valve disease)
  9. Cardiomyopathy (weakening of the heart muscle)
  10. Cellulitis (infection under the skin)

50-59:

  1. Alopecia (absence of hair from areas of the body)
  2. Blood glucose decreased
  3. Cerebrovascular accident (sudden death of some brain cells due to lack of oxygen when the blood flow to the brain is impaired by blockage or rupture)
  4. Chest pain
  5. Dyspnoea (difficult or laboured respiration)
  6. Gait disturbance
  7. Oedema peripheral (superficial swelling)
  8. Pleural effusion (water on the lungs)
  9. Pulmonary hilum mass (lung cancer)
  10. Speech disorder

60+:

  1. Pyrexia (fever)
  2. Asthenia (weakness)
  3. Nausea (feeling of having an urge to vomit)
  4. Vomiting
  5. Dyspnoea (difficult or laboured respiration)
  6. Mitral valve incompetence (inefficient heart valve)
  7. Multiple injuries
  8. Oedema peripheral (superficial swelling)
  9. Vitreous detachment (a condition of the eye in which the vitreous humour separates from the retina)
  10. Vitreous haemorrhage (intraocular (inside the eye) bleeding)

What are the existing conditions these people have? *

  1. Arrhythmias (irregular heartbeat): 8 people, 44.44%
  2. Ventricular Extrasystoles (premature cardiac contraction): 1 person, 5.56%
  3. Sick Sinus Syndrome (a collection of heart rhythm disorders): 1 person, 5.56%
  4. 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, 5.56%

* Approximation only. Some reports may have incomplete information.

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Related studies:

Effectiveness of, side effects of, and alternative drugs to the 2 drugs:

Browse all drug interactions of Quinidex and Aspirin:

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

Sub-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 Quinidex:

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 side effects of Aspirin:

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 interactions between Quinidex 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 z

Browse all interactions between Aspirin 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 z

Related publications that referenced our studies


How the study uses the data?

The study uses data from the FDA. It is based on quinidine sulfate and aspirin (the active ingredients of Quinidex and Aspirin, respectively), and Quinidex and Aspirin (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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