Magnesium sulphate can also be used for pre-eclampsia
The normal plasma level of magnesium is 0.8 - 1.0mmol/L 2
The therapeutic range of magnesium is 1-1.5mmol/L 
Magnesium Sulphate is available in 50% concentration 
Magnesium Sulphate can be administered through I/M & I/V route