Give Heartgard as well, but would like some advice here, please. I got my female Brit lab from Tenn in June – she lived outside in a run/pen there & was given heart worm preventative on a monthly basis. I had her tested in June & she was negative, but the vet there said to keep her on the meds & have her re-tested in 6 months. We have very few Mosquitos here, & only for about 2 months of the year, so….most people only give Heartgard during that time (the vets are ok w/ that here). Also, same situation with my little guy that I got from LA in July – he tested negative & I have him on Heartgard as well. My question I guess is this……is it possible that they could still test positive for heart worms if I stopped giving the preventative in December?? We usually have snow staying on the ground & temps going below 0 degrees -January we get a lot of -30+ temps. I haven’t done much research on the ‘cons’ of heart worm preventative, but it IS a chemical, & I don’t know anybody from here that gives it to their dogs except for maybe 2 months in early Summer. It has nothing to do with the cost of the meds, I bought enough for a year for each of them. So…anybody have any advice?
