Keppra Withdrawal: An Introduction Keppra ® (levetiracetam) is a prescription epilepsy medication used to control certain types of seizures. As with most seizure medications, you should not stop taking Keppra without your healthcare provider's approval. Keppra (levetiracetam) is an anti-epileptic drug (AED) (antoconvulsant) often used in conjunction with other drugs to treat types of seizures in people with epilepsy. Phenytoin (Dilantin) is a moderately priced drug used to control seizures in certain types of epilepsy. It is also used to prevent seizures during or after surgery. Once-a-day dosage: In adults, if seizure control is established with divided doses of three 100-mg DILANTIN (extended phenytoin sodium capsules, USP) daily, once-a-day dosage with 300 mg of DILANTIN (extended phenytoin sodium capsules, USP) may be considered. I was taking 180mg of Pheno with 3000mg of keppra and 300mg of lamictal, on 9/14/02 I was told to reduce my Pheno by 60mg, last night I had seizure I also had one on 9/19/02 (focal seizures) both lasted about 2 1/2 min and were more intense than usual. ryman,Ive taken meds since i was five,for last 30 plus years on dilantin.have grand mal,tonic clonic,seizures.For some reasons my dilantin level has gone to toxic levels ,3 tjmes in a year.few months ago ended up in hospital finally brough level down again,went to see a neurologist afterwards,now on keppra,,toldlot cleaner than dilantin.In one. This study is looking at three seizure medicines. Patients with seizures are usually treated with phenytoin (Dilantin) or Fosphenytoin. These medicines can be given intravenously (IV)or by mouth. Another seizure medicine, levetiracetam (Keppra) can now be given this way also. This study will compare but Dilantin or Vimpat has caused tooth decay! My poor hub had to deal with Keppra rage for over a month. Belly busted laugh when he was told it was Keppra, not just me. Dilantin is an anti-epileptic drug, also called an anticonvulsant. It works by slowing down impulses in the brain that cause seizures. Dilantin is used to control seizures. The recommended starting Keppra dosage for treating myoclonic seizures in adults and adolescents (age 12 and older) and for treating partial or grand mal seizures in adults and adolescents (age 16 and older) is 500 mg twice daily.