It didn't cause me to have bad breath - that sounds unusual. My brother-in-law has weird smelling breath and puts it down to his being on warfarin, since he said it started back then. Another friend on warfarin has no such problem, so I doubt his explanation.
My own experience is that only one kind of product can stop bad breath in its tracks and that is the newer chlorine dioxide containing mouthwashes such as Ultradex, which I buy when it's on offer at £6.00 but use irregularly.
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