Antipyretic and analgesic effects;
Effects on cardiovascular system: Asarum volatile oil can obviously increase the coronary flow of isolated guinea pig hearts; And can lower blood pressure, while decoction can raise blood pressure;
Effects on respiratory system: Asarum volatile oil has a very significant relaxing effect on tracheal smooth muscle spasm caused by histamine or acetylcholine, and its antihistamine effect is stronger than acetylcholine. It has the effects of expelling wind and cold, inducing resuscitation and relieving pain, warming lung and promoting fluid production. Asarum herb can protect the respiratory system, help protect the lungs and relieve cough and asthma.
Taboo crowd
Hyperhidrosis due to qi deficiency, headache due to blood deficiency, cough due to yin deficiency, etc. Materia Medica Jing Shu: Excess in the upper body and deficiency in the lower body, sweating due to qi deficiency, headache due to blood deficiency and cough due to yin deficiency are all prohibited. "Deserved Materia Medica": those with wind-heat and yin deficiency should not use it. Taboo people should be careful not to eat, so as not to cause physical discomfort, dizziness or qi deficiency.
side effect
Does not apply to veratrum nigrum. Toxic component: safrole.
① Asarum is toxic to the kidney, and it should be used with caution in patients with renal insufficiency.
② The daily dosage of asarum exceeds 20g→ the lips, the tip of the tongue and toes are numb, which can be recovered after stopping taking the medicine.
You all know some applicable people and side effects of Chinese herbal medicine asarum. Side effects are toxic, so we should pay attention to the intake when taking them, so as not to cause discomfort, and we should also pay attention to these taboo people.