A. In an old dog, which has only recently begun to have seizures, the cause is likely a brain tumor. Your vet can prescribe a relatively cheap medication called phenobarbital which can control the seizures. He will have to do a blood test and then regular blood tests every few months to check the blood levels of phenobarbital. Unfortunately eventually this tumor will cause your dog's death, but until then your dog can have a good quality of life as long as the phenobarbital works. Sometimes phenobarbital does not work well, but that is a bridge to cross when it happens. Talk to your vet, let him know about your financial situation. I am sure, a solution can be found.
A. Unfortunately it will probably get worse. if this is a relatively new condition, given the fact that your dog is quiet aged, it's not likely to be epilepsy, it's much more likely to be a tumor. if this is the case, medication are not likely to help.
Unfortunately, if you want to make sure that this is indeed a tumor and not something else, the only way to confirm or rule it out is an MRI, which is very expensive.
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