DRUGS ACTING ON NERVOUS SYSTEM Pharmacognosy (herbal drugs)

 DRUGS ACTING ON NERVOUS SYSTEM

EPHEDRA

Synonyms:- Ma Huang.

Biological Source:-

Ephedra consists of the dried aerial parts of Ephedra gerardiana , Ephedra nebrodensis and other Ephedra species, belonging to family Ephadreaceae.

Chemical Constituents:-  Ephedra contains

·         Ephedrine

·         Pseudoephedrine 

 Uses:-

·         Ephedrine is antiallergenic,

·          antiasthmatic, 

·         antispasmodic,

·         decongestant, cough suppressant, stimulant and vasoconstrictor

OPIUM 

Synonyms:- Crude Opium; Raw Opium; Gum Opium

Biological Source:-

Opium is the air dried milky latex obtained by incision from the unripe capsules of Papaver somniferum , belonging to family Papaveraceae.

Chemical Constituents:-  Opium contains

·         morphine

·         papaverine 

·         noscapine

·         Codeine

 Uses:-

·         narcotic,

·         analgesic and sedative action

·         and used to relieve pain,

·         diarrhoea dysentery and cough

·         used as antispasmodic