Leprosy is a chronic infectious disease caused by Mycobacterium leprae. Leprosy is also known as Hansen's disease. It affects the skin, mucosal surfaces of the upper respiratory tract, the peripheral nerves and the eyes. Leprosy can occur in people of all ages, from infants to the elderly. The exact transmission of the disease is not known, but it is strongly believed that leprosy is transferred from a leprosy patient to a healthy person. Delayed diagnosis of leprosy is likely to cause some serious complications such as muscle weakness, erectile dysfunction, kidney failure, blindness and others. The best way to prevent leprosy is to avoid contact with infected and untreated people. Leprosy is a curable disease and various drugs are available in the market for the treatment of leprosy. One of the treatments for leprosy is Multidrug Therapy (MDT), which involves the use of a combination of drugs. The World Health Organization recommends a combination of rifampicin, clofazimine and dapsone drugs for leprosy treatment.