View Single Post
Old June 14th, 2011, 02:12 AM
pattymac pattymac is offline
Pro Poop Scooper!
Join Date: Feb 2009
Location: Sunniest City In Canada!
Posts: 1,496
I've read articles about dogs such as border collies having problems with reactions to vaccines and certain worm medications, I think it's Ivermectin which what's in Heartgard. I'd check on google for Border Collies and vaccine sensitivities
Reply With Quote