19.2.1 MDT drug regimens
The drugs used in MDT leprosy treatment are rifampicin (R), dapsone (D) and clofazimine (C). There are two MDT regimens: PB-MDT for paucibacillary patients and MB-MDT for multibacillary patients, in dosages for adults and for children in blister packs; see Figure 19.1(a) to (d). Each blister pack contains treatment for four weeks.
Regimen is the term used to describe the drug dosages, the number of times the drugs are taken in any given period (e.g. per day), and the duration of treatment in days, weeks, months or years.