What is the first-line pharmacologic management for an active generalized tonic-clonic seizure in the hospital?

• A. Administer acetaminophen for fever
• B. Administer a benzodiazepine promptly, commonly lorazepam IV (0.1 mg/kg, up to 4 mg)
• C. Administer a benzodiazepine promptly, but via oral route
• D. Administer antipsychotics first

Answer: (B)

The key idea is that stopping an active generalized seizure in the hospital is done fastest by giving a benzodiazepine to boost GABA inhibition and quiet the neural firing. IV lorazepam at 0.1 mg/kg (up to 4 mg) is the preferred first-line drug because it works quickly and has a reliable duration to halt the seizure promptly. The IV route is important here—it delivers immediate effect, which is critical during an ongoing event. Oral benzodiazepines are too slow and risk aspiration, while acetaminophen won’t stop the seizure and antipsychotics aren’t used first to control acute seizure activity. If the seizure persists after the initial dose, clinicians move on to second-line antiseizure medications.