<prompt> Which one of the following drugs is not used in the treatment of mycobacterium avium intercellular infection claClaruthromycinEflornithineEthambutolRifabutin  <response>: Refer KDT 6e p750. Eflornithine is used for the treatment of some cases big trypanomiasis. It is also used topically in women to delay regrowth of facial hair following depilation 