According to Ross, it should be given promptly, in sufficient doses (up to 30 grains), and should be continued for months.
Given by the mouth glycerin produces purging if large doses are administered, and has the same action if only a small quantity be introduced into the rectum.
The dose of jalap is from five to twenty grains, the British Pharmacopeia directing that it must contain from 9 to II% of the resin, which is given in doses of two to five grains.
It may be given in half-grain doses.
The administration of enormous doses of alcohol is to be condemned strongly.