This applies to all fields, including medicines and health care industry. First of all, a particular problem is taken into consideration. The cause of the condition is identified. After finding the causes, scientists use knowledge and research to find a suitable drug to address the problem. For example, some researchers addressed the issue of male pattern hair loss.
They used scientific knowledge and researched thoroughly to get to the cause of hair loss. In view of their findings, they came up with a drug called minoxidil.