This section is from the book "A Practitioner's Handbook Of Materia Medica And Therapeutics", by Thos. S. Blair. Also available from Amazon: A Practitioner's handbook of Materia Medica and Therapeutics.
Santoninum, Santonin. A very reliable vermicide in I gr. doses combined with calomel or a laxative. Young children should not be given over 1/2 gr. Do not give during fever or constipation. One to 3 gr. of the IX trituration is used by homeopathic practicians. Santo- nine is an uncertain emmenagogue, and has been recently suggested as a nerve stimulant in tobacco amaurosis, locomotor ataxia, epilepsy, etc. There is no very tangible reason why it should be a nerve stimulant except that some old sectarian writers said so many years ago.