<prompt> Average duration of treatment in multibacillary leprosy is1 year2 years3 yearsLife long  <response>: Duration of treatment for multibacillary leprosy is 12months which include 12 monthly pulses of rifampicin , clofazamine and dapsone. 12 pulses should be completed in 18 months. iadvl textbook of dermatology page 2084 