Valporic acid tablet patient and 7 year period use tablet?

I'm confused! I don't understand your question. Are you wondering if a 7 year old valproic acic tablet is still okay to take? Or are you wondering if being on valproic acid for 7 years is okay? Please ask again, and include the reason you are taking it. There is a 150 character limit, so be brief but complete. Thanks!