Emergency Drug Calculator

STATUS EPILEPTICUS DRUGS

Advanced Directives
Yes
No

Dose calculations intravenous unless otherwise specified


(If unknown, enter as Patient X, etc.)
kg
 Initials
kg
 initials
Drug Concentration Dose Volume Notes Admin Notes
FOSphenytoin IV
(20 mg PE/kg) 		50 mg PE/mL
Dosed as PHENYTOIN equivalents (PE)
75 mg/mL fosphenytoin = 50 mg PE/mL
MAX 1 g PE		 For doses < 100 mg dilute to 5 mg/mL. For doses ≥ 100 mg dilute to 20 mg/mL. Over 10 min.
Levetiracetam IV
(60 mg/kg) 		100 mg/mL
MAX 3 g For doses < 200 mg, dilute to 20 mg/mL. For doses ≥ 200 mg, dilute to 40 mg/mL. Over 5 min.
Lorazepam IV
(0.1 mg/kg) 		4 mg/mL
MAX 4 mg Dilute 1:1 with NS. Over 2-5 min
Lorazepam Rectal
(0.1 mg/kg) 		4 mg/mL
MAX 4 mg Dilute the injection 1:1 with NS. Give rectally.
Midazolam IM
(0.2 mg/kg) 		5 mg/mL
MAX 10 mg Give into large muscle.
Caution: 2 concentrations available
Midazolam Intranasal
(0.2 mg/kg) 		5 mg/mL
MAX 10 mg Give 50% of dose in each nostril.
Caution: 2 concentrations available
Midazolam IV
(0.15 mg/kg) 		1 mg/mL
MAX 10 mg Undiluted. Over 2-5 min.
Caution: 2 concentrations available
Phenobarbital IV
(20 mg/kg) 		30 mg/mL
MAX 1 g Dilute to 5 mg/mL in NS. Over 20 min.
Caution: 2 concentrations available
Phenobarbital IV
(20 mg/kg) 		120 mg/mL
MAX 1 g Dilute to 5 mg/mL in NS. Over 20 min.
Caution: 2 concentrations available
Pyridoxine IV 100 mg/mL
Standard dose = 100 mg. Consider if child < 18 months. Undiluted. Over 2 min.
Valproic acid IV
(40 mg/kg) 		100 mg/mL
MAX 3 g Dilute to 20 mg/mL. Over 10 min. Special access medication – call pharmacy
Revised March 2024

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