Adult:
Bradycardia due to Calcium channel blocker toxicity:
500 mg to 1 gm (5 ml to 10 ml) of 10% solution, IV slowly over 60 seconds;
may repeat once in 10 minutes, if needed.
Cardiac Arrest:
1 Gram IV push
Hypermagnesemia:
500 mg over 2-3 minutes. Repeat as needed if CNS depression persists.