Cenforce 200mg Tablet has the property of relaxing the smooth muscle of the blood vessels and widening them which can cause a fall in blood pressure (hypotension). So, when used with blood pressure lowering medicines or nitrates, it can cause a severe fall in blood pressure, which could be fatal. Cenforce 200mg Tablet should not be taken if you are taking nitrates for chest pain or you have a history of heart attack or stroke in the past 6 months.