Zoloft and Flecainide acetate drug interactions - a phase IV clinical study of FDA data

Summary:

Drug interactions are reported among people who take Zoloft (sertraline hydrochloride) and Flecainide acetate (flecainide acetate). Common drug interactions include paraesthesia among females and pain among males.

The phase IV clinical study analyzes what interactions people have when they take Zoloft and Flecainide acetate. It is created by eHealthMe based on reports of 91 people who take the same drugs from the FDA, and is updated regularly.

What is Zoloft?

Zoloft has active ingredients of sertraline hydrochloride. It is often used in depression. eHealthMe is studying from 138,798 Zoloft users. Check the latest studies of Zoloft.

What is Flecainide acetate?

Flecainide acetate has active ingredients of flecainide acetate. It is often used in atrial fibrillation/flutter. eHealthMe is studying from 7,176 Flecainide acetate users. Check the latest studies of Flecainide acetate.



On Jul, 07, 2026

91 people who take Zoloft and Flecainide acetate together, and have interactions are studied.

Zoloft and Flecainide acetate drug interactions.

What are the common drug interactions of Zoloft and Flecainide Acetate, by gender? *:

female:

  1. Paraesthesia (sensation of tingling, tickling, prickling, pricking, or burning of a person's skin with no apparent long-term physical effect)
  2. Pneumonia
  3. Skin discolouration (change of skin colour)
  4. Skin hypopigmentation (loss of skin colour)
  5. Bronchitis (inflammation of the mucous membrane in the bronchial tubes)
  6. Hypertension (high blood pressure)
  7. Joint swelling
  8. Lower extremity mass (mass in lower legs)
  9. Malaise (a feeling of general discomfort or uneasiness)
  10. Myocardial infarction (destruction of heart tissue resulting from obstruction of the blood supply to the heart muscle)

male:

  1. Pain
  2. Anhedonia (inability to experience pleasure from activities usually found enjoyable)
  3. Arteriosclerosis coronary artery (thickening and hardening of arteries- coronary artery)
  4. Diastolic dysfunction
  5. Joint swelling
  6. Splenomegaly (enlargement of spleen)
  7. Thrombocytopenia (decrease of platelets in blood)
  8. Blood urea increased
  9. Cardiomegaly (increased size of heart than normal)
  10. Diabetic neuropathy (neuropathic disorders that are associated with diabetes mellitus)

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

0-1:

n/a

2-9:

n/a

10-19:

n/a

20-29:

  1. Heart rate irregular
  2. Myocardial infarction (destruction of heart tissue resulting from obstruction of the blood supply to the heart muscle)
  3. Postural orthostatic tachycardia syndrome (abnormal increase in heart rate on becoming upright)

30-39:

  1. Abdominal pain
  2. Blood pressure increased
  3. Nausea (feeling of having an urge to vomit)
  4. Weight decreased
  5. Dyspnoea (difficult or laboured respiration)
  6. Gastrointestinal viral infection (virus infection of gastrointestinal tract)
  7. Heart rate irregular
  8. Nasopharyngitis (inflammation of the nasopharynx)
  9. Palpitations (feelings or sensations that your heart is pounding or racing)
  10. Presyncope

40-49:

  1. Pain
  2. Emotional distress
  3. Paraesthesia (sensation of tingling, tickling, prickling, pricking, or burning of a person's skin with no apparent long-term physical effect)
  4. General physical health deterioration (weak health status)
  5. Injury
  6. Joint swelling
  7. Lower extremity mass (mass in lower legs)
  8. Mobility decreased (ability to move is reduced)
  9. Muscle spasms (muscle contraction)
  10. Musculoskeletal stiffness (stiffness of the body's muscles, joints, tendons, ligaments and nerves)

50-59:

  1. Heart rate increased
  2. Hyperthyroidism (over activity of the thyroid gland)
  3. Hypomania (a mild form of mania, marked by elation and hyperactivity)
  4. Logorrhoea (excessive, uncontrollable, or incoherent talkativeness)
  5. Palpitations (feelings or sensations that your heart is pounding or racing)
  6. Panic attack
  7. Pharyngitis (inflammation of the pharynx, causing a sore throat)
  8. Rash macular (small, flat red spots)
  9. Blood glucose decreased
  10. Blood glucose increased

60+:

  1. International normalised ratio increased
  2. Dyspnoea (difficult or laboured respiration)
  3. Arthralgia (joint pain)
  4. Asthenia (weakness)
  5. Overdose
  6. Quality of life decreased
  7. Gastrooesophageal reflux disease (stomach contents (food or liquid) leak backwards from the stomach into the oesophagus)
  8. Arteriosclerosis coronary artery (thickening and hardening of arteries- coronary artery)
  9. Diastolic dysfunction
  10. Joint swelling

What are the existing conditions these people have? *

  1. Narcolepsy (brain's inability to regulate sleep-wake cycles normally): 17 people, 18.68%
  2. Cataplexy (loss of muscle tone accompanied by full conscious awareness): 7 people, 7.69%
  3. Immunodeficiency Common Variable: 6 people, 6.59%
  4. Urinary Tract Infection: 5 people, 5.49%
  5. Osteoporosis (bones weak and more likely to break): 5 people, 5.49%
  6. High Blood Cholesterol: 5 people, 5.49%

* 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 Zoloft and Flecainide acetate:

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 Zoloft:

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 Flecainide acetate:

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 Zoloft 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 Flecainide acetate 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 sertraline hydrochloride and flecainide acetate (the active ingredients of Zoloft and Flecainide acetate, respectively), and Zoloft and Flecainide acetate (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.

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