Sugar, an important thing to keep in mind is that lots of dogs get seizures, and lots of dogs are on Interceptor. It would go without saying, then, that some dogs on Interceptor would have seizures. But this does not necessarily mean that the Interceptor caused the seizure. Also, you state that her seizures are not "typical", but what you describe is a very typical "petite mal" seizure.

I'm saying this not to downplay your concerns because I think they are very valid.

But I would hate to see you abandon a good vet over an assumption made on your part, and I would hate to see that your dog was not thoroughly examined for possible other causes of the seizures because you had convinced yourself it was the medication.

Are you sure that you did enough research, and that you weren't looking only at items that would tend to verify your assumption? The reason I ask that is because I have just looked at about four pages of results from typing "Interceptor seizure" into Google, and most of the sites state that their dogs had seizures until they went on Interceptor. Many of the other heartworm preventatives have been known to lower the seizure threshold in dogs, but none are currently suspected of causing the seizures. Again, many of them report the seizures were decreased or eliminated after switching to Interceptor. Also, you don't say for certain, but my guess would be that you immediately discontinued the Interceptor, yet she apparently is still having seizures? Also, the type of seizures she is having are called petite mal

The vet did dose the dog appropriately, and the drug is not currently known to cause seizures, so please don't let your grief, frustraton and confusion cloud your judgement to the extent that your dog may have a serious condition or disease in which treatment may be delayed.

Please realize, most causes of seizures, in man and animlas, are never known. Also, if she is having repeated seizures, there is a pretty good chance that she has a chronic condition that will never go away.

Of course, if you still think it was the drug, by all means pursue it!

The fact that the drugs administration and the onset of the seizures could very well be a big, unfortunate coincidence.

Or you could be right on target.

I just hope you keep your mind open to both possibilities.

Thanks for listening, and if you want to rejct everything I've said it won't hurt my feelings! I hope your little girl gets to feeling better, and will pray for her recovery.