एक जहरीला क्रिस्टलीय अल्कालॉइड (एट्रोपिन के साथ आइसोमेट्रिक लेकिन अधिक शक्तिशाली

hyoscyamine's Usage Examples:

Atropine is optically inactive; hyoscyamine, possibly a physical isomer, which yields atropine when heated to 108.6°, is laevorotatory.

Atropine, hyoscyamine, homatropine, duboisine, daturine and some other bodies have a paralysing action upon the ends of the motor and secretory nerves.

In acute mania it acts like hyoscyamine in producing sleep. In large doses stramonium is a narcotic poison producing the wellmarked stages of exaltation of function, diminution of functional activity, and later loss of function, sinking into coma and paralysis.

Henbane yields a poisonous alkaloid, hyoscyamine, which is stated to have properties almost identical with those of atropine, from which it differs in being more soluble in water.

Atropine is optically inactive; hyoscyamine, possibly a physical isomer, which yields atropine when heated to 108.6°, is laevorotatory.

Of these the more important are atropine (or atropia), hyoscyamine, hyoscine and belladonine; atropine is the most important, occurring as the malate to the extent of about o 4 7% in the leaves, and from o.

Piperine, conine, atropine, belladonine, cocaine, hyoscyamine and nicotine have been already synthesized; the constitution of several others requires confirmation, while there remain many important alkaloids - quinine, morphine, strychnine, 'c. - whose constitution remains unknown.

hyoscyamine's Meaning':

a poisonous crystalline alkaloid (isometric with atropine but more potent

Synonyms:

poison, toxicant, poisonous substance, alkaloid,

Antonyms:

constructiveness, nontoxic,