Which of the following statements regarding drugs used in Leprosy is false
Ref-KDT 6/e p752,753 Acedapsone is a repository form of dapsone. Single i.m. injection of acedapsone keep on releasing the drug for 3 months. Rifampicin is used once in a month (supervised dose) for the treatment of leprosy. It prevents the emergence of resistance to dapsone. Clofazimine can result in skin pigmentation, discolouration ofsecretions and dryness of skin (icthyosis). Clofazimine has no cross-allergenicity with dapsone.