Antimalarial N,N′-substituted biguanides derived from hydroxylamines

1. Field of the Invention Compounds of the formulae are disclosed. A method of protecting subjects from infections caused by an organism of the group: Plasmodium sp. Mycobacterium sp., and by administering to the subjects liable to infections, a prophylactically effective amount of a compound of the foregoing formulae; and a method of reducing the level of infection in subjects caused by the above-listed organism by administering to the subjects an infection reductively effective amount of a compound of the foregoing formulae are also disclosed.