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.
Calcium-channel blockers; Beta-blockers; Cardiac Glycosides; 1. Calcium channel blockers prevent or slow the flow of calcium ions into smooth muscle cells such as the heart and blood vessels. Calcium channel blockers are preferred if you have heart or lung disease. Common side effects are the heart beats too slowly, constipation, low blood pressure and heart failure. 14 âCalcium channel blockers weaken the heart and can damage the liver,â according to Dr. Julian Whitaker in his Health & Healing newsletter of October 2015.