I give Neopar at 5 wks to the puppies, followed by Progard 5 at 7-7.5 wks and 3-4 wks thereafter. I'm sticking w/ Progard 5 for combos here since it's worked for me.
I have always used and preferred Proguard. I understand that, as a result of mergers, it will be discontinued. I would be interested to hear if anyone has heard more about that.