Seizures, encephalopathy, HTN from hypomagnesemia in acute nephritis
Child: 100 mg/kg (0.2 ml/kg of 50% solution) IM q 4-6 h prn or 100-200 mg/kg slow IV as 1-3% solution.Infusion total IV dose within 60 min and 50% of dose in 1st 15-20 min. Titrate dose according to mg levels and seizure response.
Hypomagnesemic seizures
Adult: 1-2 gram (as 10% solution) IV over 15 min, then 1 gram IM q 4-6 h, based on response and mg levels.
Arrhythmias
Adult: Sustained VT, torsades de pointes: 2-6 gram IV over several min, then 3-20 mg/min IV infusion × 5-48 h depending on response and mg levels. PAT: 3-4 gram IV over 30 sec.
Barium poisoning, asthma
Adult: 1-2 gram IV. |