What is Digitalis?

Digitalis, the name of Chinese medicine. It is the leaf of Digitalis purpurea L. or Datura innoxia Mill. Foxglove has introduced cultivation in Beijing, Shanghai, Zhejiang and other places. Mao Datura was introduced and cultivated in Beijing, Shanghai and Zhejiang. With strong heart, diuretic effect. Commonly used for heart failure, cardiac edema.

Chinese scientific name: Digitalis
nickname: Ground bell flowers, Digitalis leaves
boundary: Plant kingdom
door: Angiosperm
Tsuna: Dicotyledoneae

Head: Tubular flower order
Branch: Scrophulariaceae
Genus: Foxglove
Species: Foxglove, foxglove
Dosage: Powder, 0.1-0.2g each time, 0.4g

Digitalis injection site

leaf.

Digitalis

Taste is bitter and warm.

Digitalis return

Guixin Jing.

Digitalis effect

Strong heart, diuretic.

Digitalis Indications

Heart failure, cardiac edema.

Digitalis related compatibility

1. Treatment of chronic bronchitis: 0.1 g of Datura flower, 0.5 g of honeysuckle, Polygala, and licorice each (content per pill). Research together, add appropriate amount of honey to make honey pills. Take 1 pill each time, 2 times a day for 30 days. ("National Compendium of Chinese Herbal Medicine")

2. Treatment of sores on the face: Datura flowers, dried and ground, a little stick it. ("Easy to Health Recipe")

Digitalis usage dosage

Oral: powder, 0.1-0.2g each time, 0.4g. Or made into tablets and injections.

Digitalis use attention

The dosage varies widely from individual to individual and must be determined based on patient response.

Southern Medicine "Chinese Herbal Medicine": "Digitalis is accumulative. Powders, needles, and tablets may cause poisoning such as nausea and double veins. Calcium injections should not be used during medication; acute myocarditis should be used with caution."

Digitalis collection and processing

It is cultivated in the north for one year, and it can be cultivated in the south for two years. When the leaves are thick and green, rough and stop growing, they can be harvested. Harvested from the beginning of September to the end of October in the north, the content of cardiac glycosides in the leaves was the highest. Leaves can be collected 2-3 times a year in the north and 3-5 times in the south. After harvesting, it is quickly dried below 60 ° C.

Digitalis Morphological Characteristics

1, foxglove: also known as purple digitalis. Annual or perennial herbs, except for the corolla, are covered with gray-white pubescent and glandular hairs, sometimes glabrous on the stem, 60-120 cm tall. Stems solitary or clustered. Basal leaves mostly rosette-shaped, petiole with narrow wings, up to 15 cm in length; leaves ovate or oblong, 5-15 cm in length, apex pointed or blunt, base tapering, edges with short pointed crenates , Rarely sawtooth; the lower part of the stem leaves is the same shape as the basal leaves, gradually decreasing upward, and the petiole is short until sessile and becomes a bract. Campanulate, about 1 cm long, fruiting slightly increased, 5 lobes almost reaching the base; lobes rectangular-ovate, apex obtuse to acute; corolla purple-red, inner mask spots, 3-4.5 cm long, short lobes , Apex was white pilose. Capsule ovate, about 1.5 cm long. The seeds are short stick-shaped, except for the honeycomb reticulate pattern, but also have very fine pilose. Flowering from May to June.

2, Foxglove foxglove: also known as narrow-leaved digitalis. The difference between this species and foxglove is that the leaves are lanceolate or strip-shaped, with a length of 5-30cm and a width of 1.5cm. The apex is sharp, the base is wedge-shaped and slightly embraces the stem, entire, and the edges of the basal leaves are not Regular sawtooth, glabrous on both sides, with long white wool just below the middle of the side, the main vein is thick, the side veins extend from the base of the leaf to the upper part of the leaf, or at an acute angle to the main vein, go straight to the apex like parallel veins, No handle. Flowers are small, about 2 cm long; pedicels are about 2 mm long; corollas are often milky white.

Digitalis growth environment

1. Foxglove: introduced, cultivated in Beijing, Shanghai, Zhejiang and other places. Originating in Europe.

2. Rehmannia glutinosa: Beijing, Shanghai, Zhejiang introduction and planting department. Origin: Central Europe.

Digitalis properties

1. Foxglove leaves: The leaves are mostly broken and shriveled. The intact leaves are ovate-lanceolate to wide-ovate, 10-40cm in length and 4-11cm in width; the ends of the leaves are obtuse, and the base of the leaves gradually narrows into wing-like petioles, long Approx. 17 cm; leaf margin with irregular round obtuse teeth, dark green on the upper surface; slightly hairy, veins concave; lower surface grayish green, densely hairy, pinnate reticulate veins, main veins and main lateral veins flat, Purple-colored, prominently raised, the ends of the veins reaching into each edge of the leaf margin, brittle. The air is slightly dry, and has a specific odor when wet, and has a bitter taste.

2, Huang Hua Mao Di Huang Ye: The leaves often shrink and break. Intact leaves are long-lanceolate or linear-lanceolate, sessile, 27 cm long, 1.5 cm wide, dark green on the upper surface, yellow-green on the lower surface, acuminate at the end of the leaves, and entire; roots with irregular leaves Sawtooth margin, base narrowed into wing-like petioles, main veins thicker, few side veins, extending from the base of the leaf to the upper part of the leaf, or spontaneous veins at acute angles, reaching the leaf end. Thin and brittle, brittle, slightly weak, slightly bitter.

Digitalis pharmacological action

1. Effects on the heart: (1) Strengthening myocardial contractility; (2) Effects on heart rate; (3) Electrophysiological effects; (4) Effects on electrocardiograms; (5) Mechanisms.

2. Effect on other organs: Excite smooth muscle and central nervous system.

3. In vivo processes: (1) absorption and distribution; (2) metabolism and excretion.

4, toxicity: cause arrhythmia.

Digitalis Modern Application

Digitalis tablets: for congestive heart dysfunction.

Digitalis- related discussions

1. "Illustrated Book of Chinese Medicinal Plants": "It is an important cardiotonic agent, mainly used to excite the ventricles, increase the contractile force of the heart muscle, and delay the heartbeat. In addition, it has a diuretic effect."

2. "National Compendium of Chinese Herbal Medicine": "Cardiotonic agents, which are mainly used to excite myocardium, increase myocardial contractility, greatly increase blood output during systole, and improve blood circulation. It has a diuretic effect on patients with cardiac edema."

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