MOTOR EXCITANTS. 105 



the amygdalate of tropin with dikite HCl. Its hy- 

 drobromate is much used by ophthalmologists, and is 

 a cardiac depressant. 



Chief Preparations. — Piilvis Belladonnce Foli- 

 orwn, powdered belladonna leaf . Dose: H., 3 iv.- 

 li.; D., gr. v.-x. 



Tinctura Belladonnce FoUorum, tincture of bella- 

 donna leaf (fifteen per cent.). Dose: H., fl. Sij.- 

 fl. § i. ; D., TTiij.-xxx. 



Exiractum Belladonnce Foliorum Alcoholicum, 

 alcoholic extract of belladonna leaves. Dose: H., gr. 

 v.-xv.; D., gr. yVi- 



Extractum Belladonnce Radicis Fluidum, fluid 

 extract of belladonna root. Dose: H., TTixx.-fl. 3 ij. ; 



D., mi.-v. 



Unguentum Belladonnce, ointment of belladonna. 

 For local use only. (Alcoholic extract of belladonna 

 10, diluted alcohol 6, benzoinated lard 84.) 



Linimentum Belladonnce, liniment of belladonna. 

 For local use only. (Fluid extract of belladonna root 

 95, camphor 5.) 



AtropincB Sulphas, sulphate of atropine. Dose: 

 H., gr. ss.-iss. ; D., gr. ttsj—fo- Hypodermically, 

 one-fourth to one-half of these doses. 



Sulphate of atropine is a white, indistinctly crystal- 

 line powder, permanent in the air, odorless, having a 

 very bitter, nauseating taste and a neutral reaction. 

 Soluble in 0.4 part of water and in 6.5 parts of alco- 

 hol. 



Physiological Actions. — Belladonna is a pow- 

 erful mydriatic, an irritant narcotic, an antispas- 



