The leaves and tops of Artemisia Absinthium.

Characters. - Leaves about two inches (5 centimetres) long, hoary, silky-pubescent, petiolate, roundish-triangular in outline, pinnately two or three-cleft, with the segments lanceolate, the terminal one spatulate, bracts three-cleft or entire; heads numerous, subglobose, with numerous small pale yellow florets, all tubular and without pappus; odour aromatic; taste persistently bitter.

Preparation. Vinum Aromaticum.

Dose. - Of the powder 20-40 gr. It may be given with advantage as infusion (1 oz. to 2 fl. oz.), of which 1-2 fl. oz. may be given. It strikes blue with iron salts.

Action. - It contains a volatile oil and a bitter principle, absinthin. To the bitter principle it owes its action in stimulating the digestive organs. The volatile oil is a narcotic poison. In dogs and rabbits it causes trembling, stupor, epileptiform convulsions with involuntary evacuations, and stertorous breathing, which may or may not end in death. Similar symptoms may be produced in man.

Use. - It is a bitter stomachic tonic, and is used for atonic dyspepsia. It is said to be anthelmintic.