According to a new research report by RNCOS entitled, "US Generic Drug Market Outlook 2018", the US represents the world's largest pharmaceutical markets with highest prescription sales. It is amongst the most attractive prescription drug markets and has caught the attention of several manufacturers globally, as evident from the launch of numerous generic equivalents of the branded products. Factors such as continuing patent expiration, increasing healthcare expenditure, revision of the Obamacare healthcare bill, rising disposable incomes, reduced prices of medications and rising ageing population, etc., have been driving the US Generics market, which accounts for 45% of the global Generics industry.