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. 2021 Oct 21;23(11):36. doi: 10.1007/s11940-021-00692-2

Table 2.

Features of commonly used IV AEDs and IVAT for acute seizures and SE, after initial single doses of IV BDZ have failed control [59]

Suggested
Initial IV dose
IV Maintenance dose Side effects EEG or lab considerations

Fosphenytoin

(phenytoin)

 ≥ 20 mg/kg 100 mg q8h

Hypotension

Cardiac

Enzyme induction

EKG

Phenobarbital  ≥ 20 mg/kg 30–60 mg q8h

Hypotension

Resp depression

BS on EEG

Enzyme induction

Divalproex sodium  ≥ 20 mg/kg 1 g q8h Tremor

Thrombocytopenia

Protein binding

Levetiracetam 60 mg/kg 1 g q8h Agitation Renal elimination
Lacosamide 200 mg 200 mg q12h Dizziness, cardiac EKG—conduction block, arrhythmia
Brivaracetam 100 mg 100 q12h Mood Renal elimination
Midazolam 0.2–0.5 mg/kg 2–40 μg kg min Intubation Titrate to BS on EEG
Pentobarbital 5–15 mg/kg 0.5–5 mg/kg/h Intubation Titrate to BS on EEG
Propofol 1–2 mg/kg bolus q 3 min up to 10 mg/kg 1–15 mg/kg/h first, then up to 5 mg/kg/h Intubation, propofol infusion syndrome Titrate to BS on EEG; Avoid prolonged use
Ketamine 1–2.5 mg/kg 3–10 mg/kg/h

Intubation

Psychosis

Hypertension

Use with BDZ for psychosis

(BDZ beta on EEG)