Flecainide Acetate Vs. Clonidine Hydrochloride Vs. Metromidol for a male patient aged 77 (an AI-powered real world drug study)

Summary:

This is a personalized comparison of Flecainide Acetate, Clonidine Hydrochloride, Metromidol for a man aged 77. The study is created by eHealthMe based on reports from the FDA and eHealthme.


On Jun, 17, 2026

6,651 males aged 77 (±5) who take Flecainide Acetate, Clonidine Hydrochloride, Metromidol and have adverse effects are studied.


Number of reports submitted per year:

Flecainide Acetate, Clonidine Hydrochloride, Metromidol for a male patient aged 77.

Information of the patient in this study:

  • Age: 77
  • Gender: male

What are the drugs?

What is the reason to compare the drugs?

What are the adverse effects to be compared?


eHealthMe real world results:

Comparison with the specified adverse outcomes (outcome and its % of total reports):

A-Fib (most common type of arrhythmia):

  • Flecainide Acetate: 2.53 %
  • Clonidine Hydrochloride: 0.2 %
  • Metromidol: 1.22 %

Most common side effects:

Flecainide Acetate:

  1. Dyspnoea (difficult or laboured respiration)
  2. Dizziness
  3. Fatigue (feeling of tiredness)
  4. Asthenia (weakness)
  5. Diarrhoea
  6. Malaise (a feeling of general discomfort or uneasiness)
  7. Nausea (feeling of having an urge to vomit)
  8. Drug Ineffective
  9. Hypotension (abnormally low blood pressure)
  10. Rash

Clonidine Hydrochloride:

  1. Toxic Epidermal Necrolysis (a rare, life-threatening skin condition that is usually caused by a reaction to drugs causes wide spread skin destruction)
  2. Fatigue (feeling of tiredness)
  3. Dizziness
  4. Dyspnoea (difficult or laboured respiration)
  5. Asthenia (weakness)
  6. Diarrhoea
  7. Renal Failure (kidney dysfunction)
  8. Pain
  9. Nausea (feeling of having an urge to vomit)
  10. Malaise (a feeling of general discomfort or uneasiness)

Metromidol:

  1. Sepsis (a severe blood infection that can lead to organ failure and death)
  2. Nausea (feeling of having an urge to vomit)
  3. Vomiting
  4. Abdominal Pain
  5. General Physical Health Deterioration (weak health status)
  6. Abdominal Distension
  7. Constipation
  8. Ascites (accumulation of fluid in the abdominal cavity)
  9. Hyponatraemia (abnormally low level of sodium in the blood; associated with dehydration)
  10. Cardiogenic Shock (inadequate circulation of blood)

Most common side effects experienced by people in long term (1+ years) use:

Flecainide Acetate:

  1. Interstitial Lung Disease
  2. Drug Ineffective
  3. Coronary Artery Stenosis (narrowing of coronary artery)
  4. Angina Unstable (chest pain due to ischemia of the heart muscle- unstable)
  5. Coronary Artery Disease (plaque building up along the inner walls of the arteries of the heart, which narrows the arteries and restricts blood flow to the heart)
  6. Pyrexia (fever)
  7. Fall
  8. Left Ventricular Dysfunction
  9. Pneumonitis (inflammation of the walls of the alveoli in the lungs)
  10. Vitreous Haemorrhage (intraocular (inside the eye) bleeding)

Clonidine Hydrochloride:

  1. Blood Pressure Decreased
  2. Coronary Artery Stenosis (narrowing of coronary artery)
  3. Anaemia (lack of blood)
  4. Overdose
  5. Blood Lactate Dehydrogenase Increased
  6. Convulsions (muscles contract and relax rapidly and repeatedly, resulting in an uncontrolled of muscles contract and relax rapidly and repeatedly)
  7. Disseminated Intravascular Coagulation (systemic activation of blood coagulation)
  8. Blood Creatine Phosphokinase Increased
  9. Blood Bilirubin Increased
  10. Gait Abnormal

Metromidol:

  1. Balance Disorder
  2. Fall
  3. Cognitive Disorder (mental health disorders affects learning, memory, perception, and problem solving)
  4. Extrapyramidal Disorder (involuntary muscle spasms in the face and neck)
  5. Emotional Distress
  6. Eating Disorder
  7. Dysphagia (a condition in which swallowing is difficult or painful)
  8. Dyslalia (inability to articulate comprehensible speech)
  9. Dysgraphia (impaired ability to learn to write)
  10. Drug Ineffective

Drug effectiveness:

Flecainide Acetate:

  • not at all: 0 %
  • somewhat: 13.24 %
  • moderate: 22.06 %
  • high: 42.65 %
  • very high: 22.06 %

Clonidine Hydrochloride:

  • not at all: 0 %
  • somewhat: 16.67 %
  • moderate: 44.44 %
  • high: 16.67 %
  • very high: 22.22 %

Metromidol:

  • not at all: 6.67 %
  • somewhat: 6.67 %
  • moderate: 26.67 %
  • high: 46.67 %
  • very high: 13.33 %



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).

Related studies

How the study uses the data?

The study is based on gender, age, active ingredients of any drugs used. Other drugs that have the same active ingredients (e.g. generic drugs) are considered. Dosage of drugs is not considered in the study.

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.

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