No offense. I know what you were going for but I found this quite offensive. First off, you shouldn't even joke about that stuff. Ever see someone go into a seizure? I have and it's no laughing matter. As a matter of fact, it's scary as hell to see someone you know having one. Plus, to create something that has the potential of causing a seizure to some one that could have epilepsy is plain carelessness. Technically, this could be dangerous to someone who may not even know they have the condition and this triggers it. Second, and going into more of your joke execution, this made no sense. Then again, folks don't take happy pills to stop seizures.
Overall, this was terrible in content.