Baixiaotang/Chinese medicinal materials/camphor

Camphor is also known as Shao Nao, Chao Mao, Nao Nao, oleyl camphor, tree camphor, pungent, hot and poisonous.
Gui Xin, Spleen Meridian.
Efficacy: Clear the orifices, relieve stagnant qi, dispel turbidity, kill insects, relieve itching, reduce swelling and relieve pain
Mainly used to treat scabies and itching, bruises and toothaches.
Pharmacological effects
Effects on the central nervous system: Camphor has the effect of stimulating the central nervous system, and is particularly significant for high-level centers. A large amount of camphor acts on the cerebral cortex motor area and brainstem, causing epileptic convulsions. A dose of camphor affects the respiratory system. The center has no obvious effect. Some excitement can be seen in the case of extreme respiratory depression. This is mainly due to the reflex excitement caused by stimulating receptors during subcutaneous injection. The vasomotor center can only see the excitement when its function is extremely low. The visceral blood vessels contract and the skin Increased vasodilation and blood pressure
Effects on the cardiovascular system There are no reports on this effect. No one thinks that camphor preparations have no effect on normal myocardium. High-concentration counter-inhibition of isolated hearts can only be seen when it causes failure. Excitatory effects can be seen through acting on the isolated heart. The blood pressure rises due to the vasomotor center and is considered to be effective in circulatory collapse or acute heart failure. There are also reports of doubts or negative attitudes towards this. Camphor is a water-soluble metabolite in animals. Oxidized camphor has obvious cardiotonic, blood pressure and Exciting respiratory effect
Local effect: Camphor has mild stimulating and antiseptic effects when applied to the skin. It has redness effect when applied, stimulates cold receptors and has a cooling sensation, can relieve itching and pain relief, and has a mild local anesthetic effect on the gastrointestinal tract. It also has a stimulating effect to make the gastrointestinal warm and comfortable, but large amounts can cause nausea and vomiting
Antifungal effects In vitro experiments have a strong inhibitory effect on Microsporum woolly and Trichophyton rubrum
Completely inhibiting their growth in dishes Growth