IT IS A SHORT ACTING SULPHONAMIDE. THE USE OF SULPHAGUANIDINE HAS BEEN LIMITED BY THE INCREASING INCIDENCE OF RESISTANT ORGANISMS. IT IS USED IN THE TREATMENT OF ACUTE, UNCOMPLICATEDD U.T.I. , PARTICULARLY THOSE CAUSED BY ESCHERICHIA COLI. IT HAS ALSO BEEN USED IN NOCARDIOSIS, AND IN SOME OTHER BACTERIAL INFECTIONS.