An FBC not only tests for disorders and abnormalities of the blood but, as blood travels throughout the whole body, it can give an indication of disease present in other organs. An FBC, as the name suggests, is used to obtain a count of the blood cells in the sample of blood taken.
Flecainide is a sodium channel blocker used mainly in the treatment of supraventricular arrhythmias. Central nervous system side effects such as dizziness, visual disturbances, headache and nausea are commonly associated with flecainide, but severe central nervous system toxicity is rare.
Your doctor might recommend adding a beta blocker if another type of medication isn't effective alone. Calcium channel blockers. These medications prevent calcium from entering cells of the heart and blood vessel walls, resulting in lower blood pressure. Examples include amlodipine (Norvasc) and diltiazem (Cardizem).