Divalproex (Depakote) is a moderately priced drug used to prevent seizures caused by some forms of epilepsy. It is also used to treat bipolar mania and to prevent migraine headaches. This drug is slightly less popular than other comparable drugs. It is available in brand and generic versions. Generic divalproex is covered by most Medicare and insurance plans, but some pharmacy coupons or cash prices may be lower. Get Divalproex for as low as $12.48, which is 88% off the average retail price of $104.68 for the most common version, by using a GoodRx coupon.