It is true! I took my boy (Mastiff) to the vet yesterday because he cut his foot pad and has now licked them into infection! Well I told her I had meds but got home and counted and I didn't have nearly enough. I called them back and made arrangements to go by there this afternoon. When I got there, I was a little dissappointed that a bottle wasn't waiting. The girl up front said "she left you a script, you can fill it anywhere". So I went to Publix (grocer) and when I dropped it off I asked the pharmacy tech how much and she said it was one of the free antibiotics. Sure enough, when I picked it up 30 minutes later-it was free! yayy! Oh yeah, She wrote for a refill too!