White orchid

White orchid

(records of Sichuan Traditional Chinese Medicine)

Brandy, Magnolia (flora of Guangzhou).

[source] it is the flower of Magnoliaceae.

[plant morphology] white orchid

Evergreen trees, up to 10-20 meters high (in Jiangsu and Zhejiang provinces, the weather is cold, often shrubby, only 1-2 meters high); gray bark, white pubescence on young branches and buds. The leaves are thin and leathery. Alternate, ovate elliptic or oblong, 10-25 cm long, 4-9 cm wide, both ends gradually narrowed, glabrous on both sides or sparsely hairy below, veinlets reticulate; petiole 1.5-2 cm long, with short stipule marks, about 1 / 3 or 1 / 4 of the total length of petiole. Flowers white, single, axillary, very fragrant, 3-4 cm long; sepals oblong; petals linear, 3.2 cm long; stamens numerous, multiseriate, filaments flat; carpels numerous, ovules more than 2 in each carpel, spirally arranged on the elongated stipe, ovary hairy, stigma capitate. Fruit subglobose, composed of many split carpels, mostly not fruity. The flowering period is July.

Born on the roadside or in the garden. It is cultivated in Fujian, Guangdong, Guangxi, Yunnan, Sichuan, Jiangsu, Zhejiang, Anhui and Jiangxi.

[collection] collected in late summer and early autumn, fresh or dried.

[chemical constituents] the leaves contain alkaloids, volatile oils and phenols. The oil content of fresh leaves was 0.7%, and the main components of oil were linalool, methyloleanol and phenylethanol.

The root and stem bark contained xanthocentrine, oxidized xanthocentrine, salicornine and leucine.

[pharmacological action] using its distilled liquid (1:4) as animal experiment, the antitussive (ammonia induced cough method), expectorant (phenol red method) and antiasthmatic (histamine induced asthma) effects are not strong; adding hedilon and other compounds can improve the curative effect.

Bitter, pungent and warm.

① Sichuan Traditional Chinese medicine annals: "bitter, slightly warm, non-toxic. "

② Guangzhou Air Force "commonly used Chinese herbal medicine manual": "Xin, Wen. "

[function indications] relieving cough and resolving turbidity. To treat chronic bronchitis. Prostatitis, female leucorrhea.

① Sichuan records of traditional Chinese medicine: "treatment of turbidity and women's leucorrhea. "

② Guangzhou Air Force "commonly used Chinese herbal medicine manual": "line gasification turbidity, cough. Treatment of prostatitis, women's leucorrhea, bronchitis in children, chronic cough. "

[usage and dosage] oral: decoction, 3-5 yuan.

[clinical application] treatment of chronic tracheitis

Take 1 catty of magnolia leaf, add 2 catties of water, after twice distillation, take back 1 / 4 catty of distilled liquid (concentration is 1:4), that is Magnolia dew. Usage and curative effect: yiyulanlu 20 ml once a day, 83 cases were treated, 24 cases were controlled recently, 21 cases were markedly effective, 23 cases were improved, the effective rate was 81.9%; eryulanlu was the same as above, 25 cases were treated with peanut oil 0.5 ml acupoint injection (Feishu point), once every 10 days, the effective rate was 88%; sanneiyulanlu, combined with gewang tablets, 3 times a day, 3 tablets each time, 120 cases were treated, the effective rate was 88% 77.5%. The course of treatment was 10 days. The effect is antitussive and antiasthmatic. Expectorant slightly inferior, but also has a certain anti-inflammatory effect. For cough, asthma and phlegm, the most effective time was 1-5 days, and the most effective and near control time was 6-10 days. Some patients were followed up for 3-6 months after drug withdrawal, and the results showed that there were different degrees of recurrence, and the recurrence rate was lower in those who took orally plus acupoint injection.