| Recent reports on cardiovascular drugs industry reveals that by the end of year 2010, the market for heart patients in America will rise to 251 million with the greatest rate of growth. The total market size of this industry is also expected to cross US $ 116.3 billion by the end of 2010. Of the whole cardiovascular drugs market, the anti hypertensive drugs sector is a leading segment with a total market share of around 50%. Sanofi-Aventis, Glaxo Smithkline, Novartis and Boehringer are the largest manufacturing companies of cardiovascular drugs in the global market. In the last few decades, the scope of cardiovascular drugs have improved considerably and innovative ways of treatment are being developed continuously. Cardiovascular medicines are prescribed for treating and curing heart failure and hypertension. An array of generic drugs is available in the market such as antiarrhythmic agent e.g. adenosine, losartan, antithrombotic agents, vasoconstrictor tocainide, flecainide, sotalol, amiodarone, diltiazem, or nitroglycerin.