please how do i calculate inhibition region for a pathogen and its antagonist?

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I am medical student. I want robbins pathologie fr deutsch pdf . how am I find this book ?

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Debaki Ranjan Howlader

I am sorry. Not my field of study. But in general, if you know the nature of the metabolite that are being produced by the antagonist, you can measure that up by biochemical methods, I guess. That way, you can estimate how much metabolite is needed to stop/reduce the growth of the pathogen.