(A lot of the Boraginaceae contain toxic pyrrolizidine alkaloids. These alkaloids were unknown when this book was written. More info here: Livertoxic PAs --Henriette.)
467. BORAGO OFFICINALIS Linné.—BORAGE. Habitat; Europe. (Leaves.) They contain a large quantity of mucilage, with potassium nitrate and other salts, upon which their virtues depend. Diuretic, refrigerant, demulcent, etc. Dose of fluidextract: 1 fl. dr. (4 mils) .
A Manual of Organic Materia Medica and Pharmacognosy, 1917, was written by Lucius E. Sayre, B.S. Ph. M.