I used Interceptor for Jilly and now Tibbe until I had to change due to the problems with getting it and switched to Heartguard, which Tibbe has now had two doses of with no apparent problems but then he's not sensitive to drugs to date. I won't know if its working to prevent heartworms until his next heartworm test.
__________________  Jeanie and Tibbe One must do the best one can. You may get some marks for a very imperfect answer: you will certainly get none for leaving the question alone. C. S. Lewis |