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What anesthetics are used for surgery?
(1) ether. This product is a relatively safe inhalation anesthetic, which produces anesthesia in 3 ~ 5 minutes. Great irritation, more respiratory secretions, but good muscle relaxation effect. Before anesthesia, morphine 5 ~ 10 mg/kg and atropine 0. 1 mg/kg were injected subcutaneously, and then ether was inhaled. Usage: Inhale with a mask.

(2) halothane. This product is a powerful inhalation anesthetic, stronger than ether, and has no irritation to respiratory tract. Nitrous oxide mixed anesthesia is needed, and atropine is injected in advance. Usage and dosage: administered by semi-closed or closed anesthesia machine, with drug concentration of 5%.

(3) chloral hydrate. Chloral hydrate is a good sedative and hypnotic drug. With the increase of dose, it can produce sedative, hypnotic and anesthetic effects. It has the advantages of fast absorption, long excitation period (1 ~ 3 hours), no accumulation and low price. Administration and dosage: oral or enema,100 mg/kg; Intravenous injection, 80 ~ 100 mg/kg.