Flos Daturae

 

Source
Flower of Datura metel L., family Solanaceae.

Characteristics
Flowers dried and shrunken as long strips, 9-15 cm long, grey-yellow, consisting of calyx and corolla; calyx cylindrical, two-fifth as long as corolla, apex irregularly 5-lobed; corolla trumpet-shaped, apex 5-lobed, each lobe presenting a mucronation in the middle and three veins undemeath; containing 5 stamens with filament growing inside the corolla tubes, and one pistaL Calyx often dropping and corolla broken when dried. Acrid in taste, warm in nature, toxic, and attributive to heart, lung and spleen channels.

Indication
1. Relieve cough and asthma: For chmnic bronchitis and bronchial asthma.
2. Anesthetize and alleviate pain: For surgical operation as anesthetic, but its effect is not deep enough, so it should be used together with small dosage of Wintermin, Promethazine, or Dolantin. Also used for epilepsy and schizophrenia.
3. Expel wind and alleviate pain.

Pharmacological Action
1. Exerting peripheral parasympatholytic effect, and causing tachycardia, mydriasis, dryness of skin and mouth, and relaxation of alimentary and bronchial smooth muscles.
2. Acting as a central depressor stronger than Atropine, occasionally inducing hallucinations.
3. Depressing basal ganglia.

Administration Decoction:
0.3-1.0g; or 3-6g for anesthesia. Scopolamine: 3-Smg, half of the initial dose may be supplemented if necessary.

Caution
This medicine may cause thirst, manic state, hallucination, blurred vision, palpitation, etc. Contraindicated for glaucoma, serious cases of hypertension and hyperthyroidism, as well as pulmonary, cardiac, hepatic and renal insufficiency, and high fever.


   

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Mr. Wang Tao

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herb@damo-qigong.net
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