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.
738. Senna
Senna is a purgative, but is apt to gripe when given alone; therefore it is combined with some aromatic, such as cloves or ginger, and the infusion should be made with