Take of powdered rhubarb, a scruple; scammony and calomel, of each five grains. Rub them together in a mortar for one dose.
For children the above doses must be lessened according to their age.
If the powder of tin be given alone, its dose may be considerably increased. The late Dr. Alston give it to the amount of two ounces in three days, and says, when thus administered, that it proved an egregious anthelmintic. He purged his patients both before they took the powder and afterwards.
Domestic Medicine 2nd edition 1785