Strychnos nux vomica, also known as bitter fruit, soft shelled turtle and semen plantaginis, is the seed of the plant Strychnos nux vomica in the family strychnaceae. It is cold in nature, bitter in taste and poisonous. Return to liver and spleen channels. Efficacy: dispersing nodules and swelling, dredging collaterals and relieving pain. It is traditionally used for rheumatism, numbness, paralysis, gangrene, carbuncle, swelling and pain, traumatic injury, etc.The specific functions of nux vomica include:

Effects on nervous system

    It mainly acts on the spinal cord, excites its reflex function, and makes the nerve impulses easy to conduct among the neurons. It also has the function of stimulating the brain, causing the sensitivity of various sensory organ functions, enabling patients in inhibitory state to wake up, and regulating the excitation and inhibition process of the cerebral cortex.

To the digestive system

    The direct test of the patient's intestinal fistula tube showed that strychnine had no excitatory effect on human smooth muscle. The only effect on the digestive tract: oral administration can promote the secretion of digestive juice.

Effects on respiratory system

    The effect of brucine is 1 / 8 of strychnine. It is reported that it has no effect on the cough of mice caused by ammonia and S02. It has strong antitussive effect. The intensity is higher than that of codeine, and its expectorant effect is similar to that of ammonium chloride. When the administration time was prolonged and the dosage was increased, the antihistamine induced asthma in rabbits could be strengthened.

Improve muscle tone

   Nux vomicaStrychnine in can increase the tension of striated muscle, smooth muscle and myocardium.

Bacteriostasis

    It has inhibitory effect on Haemophilus influenzae; It can also inhibit common pathogenic skin fungi.

Toxic effect

    Overdose may cause tetanic convulsion. He died of respiratory paralysis. It has strong affinity for the central system and is difficult to dissociate. If the therapeutic dose is used continuously, it can cause accumulation poisoning.