Rhododendron microphylla

Rhododendron microphylla

(selected Chinese herbal medicines from Shaanxi, Gansu, Ningxia and Qinghai)

[synonym] heixiangchai.

[source] it is the branch and leaf of Rhododendron capitatum.

[plant morphology] Rhododendron capitatum

Shrubs, 50-100 cm high. Stem erect, many branched, slightly curved, internodes short, old branch dark brown, tender branch light green, dense branch scale. Leaves alternate, mostly on twigs. Inflorescence terminal, capitate, flowers about 5; calyx 5, unequal; corolla tube campanulate, blue purple. Capsule ovate, scaly.

It grows in shrubbery or mixed forest on shady hillside. It is distributed in Gansu, Qinghai and other places.

[collection] all year round. Dry in the shade, cut into sections or distill to extract volatile oil.

[nature and taste] selected Chinese herbal medicines of Shaanxi, Gansu, Ningxia and Qinghai: "pungent, warm. "

[functions and indications] selected Chinese herbal medicines of Shaanxi, Gansu, Ningxia and Qinghai: "relieving cough, relieving asthma, eliminating phlegm; treating chronic tracheitis and asthma. "

[usage and dosage] oral: decoction, 2-3 yuan.

[clinical application] treatment of chronic tracheitis

Rhododendron oil was extracted from the leaves of Rhododendron microphylla, berberine bisulfate was extracted from three needles, amygdalin was extracted from amygdalin, and the three drugs were put into capsules according to the following dosage: 0.09 g (0.1 ml) of Rhododendron oil, 0.25 g of berberine bisulfate and 0.02 g of amygdalin. Four times a day, take 1 capsule in the morning, after dinner and 2 capsules before going to bed. The course of treatment is 10 days. A total of 350 patients, aged 50-79 years, were treated. The course of disease was mostly more than 6 years, up to 50 years. Results: 41 cases (11.7%) were cured and 112 cases (32%) were markedly effective. 130 cases of undiluted sputum were cultured, and all of them had bacterial growth, such as diplococcus catarrhalis, Diplococcus pneumoniae, Streptococcus A, diphtheria, Haemophilus influenzae, Staphylococcus albicans, etc.; 96 cases of sputum culture were compared before and after treatment, and the positive rate after treatment was significantly lower than that before treatment. This prescription has obvious antitussive, expectorant and anti-inflammatory effects, but its antiasthmatic effect is not strong enough. About 5% of the cases had dizziness, dry mouth, stomach discomfort and other side effects, and some cases had abdominal distension, diarrhea and urticaria, which disappeared spontaneously. The drug had no obvious effect on ECG, liver and kidney function.