Epilepsy is a group of neurological disorders characterized by recurrent epileptic seizures. Epilepsy is a disease characterized by seizures. Neurological disorders that may occur as complications include seizures and tremors. Serious side effects include an increased risk for epileptic seizures and suicide. Only 25% of people who experience seizures or status epilepticus have epilepsy. Severe symptoms include confusion, seizures, and coma. Adults with encephalitis present with acute onset of fever, headache, confusion, and sometimes seizures. Neurologic effects include dizziness, loss of balance, seizures, and tinnitus. Those with febrile seizures and drug related seizures may also be considered. Scientific work into the prediction of epileptic seizures began in the 1970s. It is not effective for absence seizures or myoclonic seizures. It is not effective for absence or myoclonic seizures. Occasionally seizures or allergies to the medication may occur. Paradoxical excitement occasionally occurs with benzodiazepines, including a worsening of seizures. Those with seizures are administered anticonvulsants.