German Shepherd Dog Forums - View Single Post - Heartworm Prevention - Advantage Multi OK?
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Old 05-12-2014, 11:29 PM   #3 (permalink)
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I should add that it is less about the brand and more about the formulation. For dogs who have once been treated for HW, it is recommended that they use an Ivermectin-based HW preventative. I honestly don't know what Advantage Multi uses.
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