Smelling salt, also called "staghorn wine", is a kind of medicine made of ammonium carbonate and spices, which can make people recover or get excited after smelling it, especially for relieving coma or headache. Its active ingredient is ammonium carbonate monohydrate, a colorless crystal (molecular formula: (NH4)2CO3 H2O).

The awakening mechanism is that ammonia gas released by olfactory salt will stimulate the mucosa of human respiratory organs (nose, lungs, etc.). ), will aggravate the breathing movement, make people awake.

Extended data;

In Victorian England, smelling salt was a necessity for upper-class ladies. It is widely used to wake up women who have fainted, so the police often carry smelling salts with them in case of emergency.

Because in the upper class at that time, people thought that women should be weak and faint when they saw something inappropriate. That's a first-rate woman, so they should have smelling salts around them so that they can "wake up" immediately.

Victorian women would choose the former. Because of this, they would rather endure uterine prolapse and the gastrointestinal discomfort caused by it. As for the small problem of breathing, it is obviously not more terrible than the waist of the bucket.

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