Flecainide is a strong anti-arrhythmic used to control certain abnormal heart rhythms. You can’t pick it up over the counter — it’s prescription-only because it needs careful checks and follow-up. If you think you need it or were told about it, this page explains who prescribes flecainide, the tests you’ll need, and safe ways to get a legitimate prescription in the UK.
Most people are started on flecainide by a cardiologist, often after an ECG shows a rhythm problem like atrial flutter or supraventricular tachycardia. Your GP might arrange a referral, or a cardiology clinic may pick it up during investigation. Before anyone prescribes it you’ll usually get:
- A 12-lead ECG to check your baseline heart rhythm and PR/QRS intervals.
- An echocardiogram (echo) or other tests to rule out significant structural heart disease — flecainide can be unsafe if the heart’s pumping is weak.
- A medication review to spot interactions (some antidepressants, other anti-arrhythmics and certain heart drugs can clash with flecainide).
- Regular follow-up ECGs after starting and after dose changes.
If you have heart failure, a recent heart attack, or marked left ventricular dysfunction, your doctor will likely choose something else.
NHS route: talk to your GP about palpitations or abnormal ECG results. If needed, your GP will refer you to cardiology. If a specialist recommends flecainide, the hospital or your GP will issue the prescription and arrange monitoring. On the NHS you may pay the standard prescription charge unless you’re exempt.
Private route: you can see a private cardiologist or use a private ECG clinic. Expect to pay for the consultation and tests. Private clinics often offer faster appointments but plan for follow-up ECGs and reviews.
Online/telemedicine: several UK services let you consult a doctor remotely. A legitimate online clinic will ask about your heart history, request recent ECG results, and refuse to prescribe without proper checks. If they do prescribe, they must be UK-registered and issue a valid prescription dispensed by a UK pharmacy.
Beware of rogue websites that sell flecainide without a prescription. Always check that the prescriber is registered with the General Medical Council and the pharmacy is registered with the General Pharmaceutical Council. If a site sells prescription-only meds without checks, avoid it.
Practical tips: keep copies of ECGs, ask who will monitor your treatment, and report new symptoms like fainting or severe dizziness straight away. Carry a list of your medicines to avoid dangerous interactions. If cost matters, ask the clinic about NHS transfer after diagnosis — many people start privately and move to NHS follow-up.
Want help finding the right pathway? Talk to your GP first — they’ll guide you to cardiology, a safe private clinic, or an approved online service that follows UK rules.
Get practical advice on safely buying Flecainide online in the UK, including legal guidelines, how to avoid scams, and what to expect from digital pharmacies.