My husband went into cardiac arrest 1 year ago, he flat lined and was gone for 7 1/2 minutes. The doctors have him on 3 seizure meds (Depakote, keppra, and Clonazepam) for the myoclonic jerks. I was reading the side effects from these meds, and on the Depakote one of the side effects is Shaking and tremor, so what would happen if he didn t take this medication. Could his jerking be from the medication or is it most likely from the lack of oxygen to the brain for the length of time he was gone? Also he has problems with memory - side effect of Clonazepam was this. Weakness is one of the side effects of Keppra. So could some of his issues be because of these medications or not? Thank you for any clarification you can provide. Tammy