Status epilepticus, a condition with prolonged or repeated seizures, is a common neurological emergency with significant morbidity and mortality. This text outlines the treatment and initial work-up for convulsive and non-convulsive status epilepticus in adults and children. The most serious form is convulsive (tonic-clonic) status epilepticus, which requires rapid treatment and work-up. Bensodiazepines are the preferred initial treatment, while antiepileptic drugs and anesthetics are added if seizures continue. For other forms of status epilepticus, the treatment depends on the type of seizures and the patient's general condition. Etiological work-up is essential in any case of status epilepticus. Effective treatment and work-up in status epilepticus requires a defined treatment protocol and multidisciplinary cooperation.