Summary. Drug interactions are reported among people who take Keppra and Aleve together. This study is created by eHealthMe based on reports of 107 people who take Keppra and Aleve from FDA, and is updated regularly. 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 phenytoin test is used to optimize drug therapy, monitor the amount of phenytoin in the blood, determine whether drug concentrations are in the therapeutic range, and to monitor patient adherence. Common Questions and Answers about Dilantin and ibuprofen dilantin 2 and I take the correct dosage my doctor prescribed of 400 MG a day. 200 in the morning and 200 at night. 301 Moved Permanently. nginx How to use Dilantin 30 Mg Capsule. Read the Medication Guide provided by your pharmacist before you start taking phenytoin and each time you get a refill. Naproxen is a nonsteroidal anti-inflammatory drug (NSAID) used to treat pain and inflammation for many medical conditions. It is the active ingredient in the over the counter medication Aleve. DESCRIPTION. DILANTIN (phenytoin sodium) injection, USP is a sterile solution of 50 mg phenytoin sodium per milliliter for intravenous or intramuscular administration. Summary. Drug interactions are reported among people who take Aleve and Dilantin together. This study is created by eHealthMe based on reports of 67 people who take Aleve and Dilantin from FDA, and is updated regularly. There is no known interaction between Advil and Dilantin in our records. However, an interaction may still exist. However, an interaction may still exist. Always consult your doctor before taking these medications together.