Can flecainide cause sudden death?

Therefore, flecainide has been used for the therapy of catecholaminergic polymorphic ventricular tachycardia (CPVT), which is an inherited arrhythmogenic disease with mutations of either the cardiac ryanodine receptor or calsequestrin that can cause sudden cardiac death[21].

Is flecainide a high risk drug?

This is the most serious warning from the Food and Drug Administration (FDA). A black box warning alerts doctors and patients to potentially dangerous effects. If you’ve had a heart attack within the past two years, flecainide may raise your risk of having another heart attack, which can be fatal.

Can flecainide make AFIB worse?

Flecainide may cause or exacerbate arrhythmias in 1% of patients with preexisting paroxysmal supraventricular tachycardia and in 7% of patients with paroxysmal atrial fibrillation. Flecainide may also exacerbate arrhythmias in 7% to 13% of patients with preexisting sustained or nonsustained ventricular arrhythmias.

Can flecainide cause atrial fibrillation?

Flecainide, a widely prescribed class IC agent used to treat atrial arrhythmias, can in rare cases cause 1:1 atrial flutter with rapid conduction. We describe the case of a 59-year-old man who was on a maintenance regimen of flecainide for refractory atrial fibrillation.

How long can I stay on flecainide?

Treatment with flecainide is usually long-term unless you experience an adverse effect. You should continue to take it unless you are advised otherwise by your doctor.

How long does flecainide work for AFIB?

The success rate ranged from 57 to 68% at 2-4 h and 75 to 91% at 8 h after drug administration. The conversion time ranged from 110+/-82 to 190+/-147 min, depending on the duration of observation after drug administration, which in most trials was of 8 h.

What are the dangers of flecainide?

Check with your doctor right away if you develop any of the following: chest pain; shortness of breath; swelling of your hands, ankles, or feet; or weight gain. These may be symptoms of heart failure. This medicine can cause changes in your heart rhythm, such as conditions called PR, QRS, or QT prolongation.

Is long term use of flecainide safe?

Treatment with flecainide is usually long-term unless you experience an adverse effect. You should continue to take it unless you are advised otherwise by your doctor. If you are having an operation or any medical/dental treatment, remember to tell the person carrying out the treatment that you are taking flecainide.

What is the best sleep position for AFib?

A left lateral recumbent position increases the dimensions of the left atrium and the right pulmonary veins and thereby increases local myocardial stress (Wieslander et al., 2019).

Does flecainide affect sleep?

Similarly, the labeling for flecainide describes a high level of CNS adverse effects including dizziness (19-30%), visual disturbances (16%), fatigue (8%) and somnolence and insomnia at a frequency between 1% and 3%.

Does flecainide help AFIB?

User Reviews for Flecainide to treat Atrial Fibrillation. Also known as: Tambocor. Flecainide has an average rating of 7.4 out of 10 from a total of 99 ratings for the treatment of Atrial Fibrillation. 69% of reviewers reported a positive effect, while 19% reported a negative effect. Filter by condition.

How fast does flecainide work?

Exclude contraindications (structural heart disease,symptomatic bradycardia,second degree or superior AV block,QRS > 120 ms or Brugada syndrome).

  • Record an ECG with a paper speed of 50 mm/sec and calculate the QRS duration (1 mm = 20 ms).
  • Administer a loading oral dose of 250 mg (200 mg if the weight is lower than 70 kg).
  • What does flecainide do?


  • changes in vision
  • headache
  • weakness
  • uncontrollable shaking of a part of your body
  • constipation
  • stomach pain
  • Can flecainide stop AFIB?

    Flecainide is an anti arrhythmic, it’s purpose soley is to stop your heart going into arrhythmia. So it’s not really a surprise that you have not had an afib attack for 5 months if you have been taking flecainide ! Maggimunro 7 months ago