1, efficacy and main treatment:

Effective dispersal of wind-cold, lung asthma, diuresis and swelling, dispersal of cold stagnation, lungs go to the surface. The main treatment of wind-cold surface evidence, wheezing and coughing, wind and water edema, as well as rheumatic paralysis, phlegm nuclei, gangrene, urticaria and so on.

2, the evidence of the use of contraindications:

(1) ephedra sweating force is stronger, the general pediatric, elderly patients and the frail should be used with caution. Although the evidence of wind-cold, but sweating more should be used with caution.

(2) Ephedra is generally suitable for the treatment of solid cases, where there is a deficiency of qi in the external sensation, clinical manifestations of bad wind and cold, shortness of breath and weakness, spontaneous sweating when moving, pale tongue with white moss, and weak and feeble pulse, etc., should be used with caution.

(3) ephedra is warm, pungent, dry and strong, easy to injure the yin and blood. Yan Jie said: "with ephedra more than sweat, cold water soaked hair, with oysters, glutinous rice powder puff. Cold evil in the inside, the pulse is not floating tight and strong, wind with sweat, vegetarian blood, true Yin internal deficiency, Wei Qi deficiency, springtime plague, fever and malignant cold, no headache, body pain and urgency, etc., are prohibited. The current symptoms also have headache and body pain, the emergency, it is appropriate to carefully examine the."

(4) Yin deficiency of liver and kidney, hyperactivity of liver and yang, clinical manifestations of headache, dizziness, night sweating, red tongue with yellow fur, strong pulse, etc., should be avoided.

(5) Yin deficiency, blood heat, clinical manifestations of vomiting blood, hemoptysis, blood in stool, blood in urine, epistaxis, subcutaneous purpura or excessive menstruation in women, although the evidence of wind-cold, or chest tightness and cough should be avoided.

(6) Heart and blood deficiency, heart and mind restlessness, clinical manifestations of palpitation, chest tightness, asthma, lower limb edema, urinary incontinence, pale tongue, white moss, and number of pulse should be avoided.

(7) It should not be used if the skin rash is itchy and its color is red.

(8) wind-cold surface sweating, chronic asthma, Yin deficiency, internal heat, liver Yang hyperactivity should be avoided.

(9) ephedrine has the effect of excitation of bladder sphincter, such as overuse or prolonged use can lead to a decrease in the amount of urine, or even urinary retention or urinary closure, therefore, urinary incontinence, urination should be used with caution.

(10) Modern pharmacological studies have shown that ephedra has the effect of excitation of the central nervous system, elevated blood pressure, so be careful with those who are irritable, easy to anger, palpitation, insomnia and elevated blood pressure.