2 ADDER S TONGUE — ADRUE — AGAR-AGAR. 



and facial neuralgia, also in acute catarrh, ulcerated 

 tonsils, and croup. In palpitation and heart spasm it 

 has been used with success. Overdoses should be care- 

 fully avoided as no reliable antidote is known. 



Preparations — Fluid extract, leaves : Dose, 2-4 

 drops. Fluid extract, root, U.S. P. : Dose, J-2 drops. 

 Tincture B.P. : Dose, 2-15 drops. 



ADDER'S TONGUE. Erythronium Americanum. 



Synonym — Serpent's Tongue. 



Part used — Herb. 



Action — Emetic, emollient, antiscrofulous. The fresh 

 leaves are used as a poultice in scrofulous ulcers and 

 tumours, together with an infusion taken internally 

 in wineglassful doses. Is reputed of use in dropsy, 

 hiccough, and vomiting. 



ADRUE. Cyperus artlculatus. 



Synonym — Guinea Rush. 



Part used — Root. 



Action — Anti-emetic. It possesses aromatic proper- 

 ties, diffusing a feeling of warmth throughout the system 

 and acts as a sedative in dyspeptic disorders. Is par- 

 ticularly useful in vomiting of pregnancy, &c. 



Preparation — Fluid extract : Dose, 10-30 drops. 



AQAR-AQAR. Gelidium corneum. 



Synonym — Japanese Isinglass, Chinese Isinglass, 

 Japanese Gelatin. 



Part used — Plant. 



Action — Nutritive. This name is applied to several 

 edible seaweeds in the East. The commercial varieties 

 are used in bacteriological investigations, and for techni- 

 cal purposes in sizing silks and fabrics. 



