I would not be giving minocycline to a puppy that young either. Ruins the enamel on the adult teeth. I would ask to switch to Amoxi. Not as great on some tick born diseases, but better for the pup. Sort of, oh I actually don't know. This is a tough one. It's a toss up. Your pup is actually symptomatic, so that may change things. But talk to the Vet about side effects in a young puppy.
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