Flecainide is an antiarrhythmic drug used to treat certain types of serious irregular heart rhythms, such as atrial fibrillation and ventricular arrhythmias (including life-threatening ventricular arrhythmias). It is also used to prevent these heart rhythm problems from returning. This medication is usually prescribed orally, in the form of tablets or capsules, and taken with or without food based on your doctor's instructions. Certain foods and drinks can interact with this medicine and increase the risk of side effects, so it's important to be aware of these interactions to help you maintain optimal health while taking flecainide.
Grapefruit and its juice contain compounds called furanocoumarins, which can inhibit enzymes in the liver that break down medications. This can cause increased levels of these drugs in the bloodstream, which can enhance their side effects and even lead to toxicity. Therefore, it is recommended that you avoid grapefruit and its juice while taking this medication.
Excessive sodium intake can negatively affect heart health, so be sure to carefully read nutrition labels and choose low-sodium processed foods while taking this medication. It is also a good idea to consult with a dietitian who can provide a meal plan that takes into account your medications and their dietary implications.
Drinking alcohol while taking this medication can intensify some of its side effects, such as drowsiness and impaired coordination. It can also worsen heart rhythm abnormalities in those with underlying heart disease, so it is best to avoid it completely.