Effective Anaesthetics
Before effective anaesthetics, surgery was very crude and very painful. Before 1800, alcohol and opium had [blank] success in easing pain during operations. Laughing gas was used in 1844 in dentistry in the USA, but failed to ease all pain and patients [blank] conscious. Ether (used from 1846) made patients totally unconscious and lasted a long time. However, it could make patients cough during operations and sick afterwards. It was highly flammable and was [blank] in heavy glass bottles. Chloroform (used from 1847) was very effective with few side effects. However, it was difficult to get the dose right and could kill some people [blank] the effect on their heart. An inhaler helped to regulate the dosage.
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