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.
Polygonum Punctatum, Smart-weed. Only fresh plant preparations are of any value. In large doses (ec. tr., 30 to 60 1Tl) used in amenorrhea in young girls and suppression due to cold. In small doses (5 to I0 I) useful in flatulent colic with griping pain. The drug is a carminative antispasmodic of secondary importance.