Dosage and Administration:It is important to follow your Veterinarian's prescription instructions for this medication and discuss with your Veterinarian any instructions you do not understand.Possible Side Effects:As with most anticonvulsant drugs, zonisamide can cause drowsiness, incoordination and a depressed appetite in dogs. However, there is concern that there may be side effects associated with zonisamide of which we are currently unaware because it has had limited usage in dogs compared to many of the other drugs that we use routinely. Nevertheless, zonisamide does seem to be relatively safe for dogs.Zonisamide is known to cause birth defects in puppies and kittens and should not be given to pregnant or nursing animals. Zonisamide -25mg 100 count bottle. I do not receive this product or any others in exchange for this article, I do get a commission for readers clicking the buy now links which helps to differ the cost of hosting this blog and I sincerely hope this article site helps you with your search for Vet Approved Rx products.