I have never heard of it but it looks like its for canker and E. Coli, my advice for what its worth would be to stay clear of it because E coli has so many different strains (serotypes) which need to be looked at properly to find which antibiotic it is sensitive to . E. Coli is a secondary infection which means there must be something else wrong with the bird to let the E coli get in there and do its thing.