The discovery and development of new drugs to provide medicines for treating diseases is the main role of the pharmaceutical industry. It is a challenging and expensive activity of pharmaceutical industry. Biological organisms and especially human beings are extraordinarily complex, and our understanding of how they function at the molecular level remains rudimentary, although considerable advances in knowledge have been made in recent decades. Whilst an advanced industrial society was able to plan and deliver a man to the moon following a 10-year program, almost 50 years on we are still only able to treat about 60% of cancer patients effectively, and do not understand how to correct most mental diseases. Development of new medicines is complex, time consuming and very expensive. The average cost of developing a new drug is estimated to be about US $ 1-1.2 billion, including expenditures on failed projects. This amount is about four times the price of an Airbus A380 at US $ 270 million
A distinct way of learning experimental pharmacology....