Dose: 3—10 grn.—Caution: Decomposes in solut.; should be sterilized and kept with great care.

Ergotole.

Liq. prepar. of ergot, 21/2 times strength of U.S.P. fl. ext.; stated to be permanent.—Inject.: 5—20 min.

Eriodictyon—U.S.P.

Yerba Santa.—Preparation: F.E. (D., 20—60 min.).

Erythrol Tetranitrate Merck.

Cryst. mass, exploding on percussion; therefore on the market only in tablets with chocolate, each containing 1/2 grn. of the salt.—Vasomotor Dilator and Antispasmodic, like nitroglycerin.—Uses: Angina pectoris, asthma, etc.—Dose: 1—2 tablets.

Eserine Salicylate Merck.

Physostigmine Salicylate.—Slightly yellowish cryst.—Sol. in 150 parts water; solut. reddens on keeping.—Spinal Depressant, Antitetanic, Myotic—Uses: Tetanus, tonic convulsions, strychnine poisoning, etc.; in 5% solut. to contract pupil.—Dose: 1/120—1/30 grn.—Max. D.: 1/20 grn.

Eserine Sulphate Merck.