Medical Functions of Camphor
1. Local action: Camphor applied to the skin with a mild irritation and corrosion. There are rubbed hard red hair effect; light coating is similar to mint, cool feeling, which was due to the cold sensation receptor stimulation effect. It also has mild local anesthetic effect. For the gastrointestinal mucosa, camphor have a stimulating effect, make the stomach feel warm and cozy, you can generate a lot of nausea and vomiting. Analgesic, anti-itching effect on the clinical use of camphor liniment. Oral has carminative action and mild expectorant effect.
2. The role of the central nervous system: Systemic effect camphor mainly excited the central nervous system, is particularly significant for the senior center, a large role in the motor cortex and the brain stem, causing epileptic seizures. Camphor general dose had no significant effect on respiration, in extreme suppression, you may see some breathing excitement, mainly due to the stimulation of receptors hypodermic caused by reflex excitability.
3. The role of the circulatory system: camphor turns formulation was once widely used as cardiac drugs, no effect on normal myocardium, the high concentration of anti-suppression. On the isolated heart, only when the failure cause, side see a stimulant. Vasomotor pole, only when its function is extremely low, side see a stimulant, visceral vasoconstriction and skin vasodilation, increased blood pressure.
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