_Calcined magnesia_ possesses the same properties as the carbonate.
_Dose,_ from ten to thirty grains, in milk or water.
_Carbonate of magnesia_ is an antacid and laxative, and is very useful
for children when teething, and for heartburn in adults.
_Dose,_ from a half to two drachms, in water or milk.
_Fluid Magnesia_ is a useful preparation by whose use is avoided the
grittiness that is inseparable from magnesia when taken in the form of
powder.