USA model?: Manufactured in usa by upjohn and watson. If not a counterfeited product, i would think both should work about the same. I did see one non-professional website that claimed that "it takes longer for the watson form to take effect, " but I do not know if this is true or not. Also get your levels checked after you are started on this. If the level is good, your symptom control should be good.
Answered 9/1/2013
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