| I was just at the vet and looked into this very issue. The vets in my office are discouraging use of the shot for the reasons that have been already been mentioned. I was particularly concerned about potential adverse reactions to a drug that would be in their system for 6 months.
Plus I would have had to make two trips - one for the heartworm test and then back again to get the shot once the test proved negative. That would have been a huge inconvenience since I have three dogs. No way do I want to have to four trips a year for heartworm prevention when one currently suffices.
Heartgard Plus protects against more intestinal parasites than the shot does, too.
My vet writes me a prescription so I can order the meds through the UPCO catalog which saves me quite a bit. |