50% off and another 20% off of PetCareRx SWEET! May 26, 2011 by Enza ShareTweetPin0sharesSo of course I checked out this offer!!! My dogs Heartguard was way cheaper than the vets office!!! Save up to 50% on name brand flea and tick medications for your pet. Plus, take an additional 20% off right now! Go through this like HERE!