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.
Piperazine. An antilithic. Dose, 15 to 30 gr. per day, in water. The chemical is hard to keep, but the pharmacist can put it up in solution, freshly made, every two or three days. It is a most excellent agent, but rather expensive.