Head over HERE to request your 2 FREE doses of Advantage Multi, when you purchase a 6pk! This stuff is quite pricey, but flea/tick and heartworm medication is one of the most important aspects of being a responsible pet owner.
Advantage Multi is a once-a-month treatment to protect your canine against heartworm disease, fleas, and common internal parasites. And as always, please read the product insert for proper application procedures! DO NOT USE ON CATS.