(Some Teucriums, among them Teucrium chamaedrys, contain hepatotoxic pyrrolizidine alkaloids. More info here: Livertoxic PAs --Henriette.)
490. TEUCRIUM.—GERMANDER. The leaves and tops of Teu'crium chamae'drys. Aromatic stimulant; noted as an ingredient in the famous gout remedy known as Portland Powder.
A Manual of Organic Materia Medica and Pharmacognosy, 1917, was written by Lucius E. Sayre, B.S. Ph. M.