Four Methods for Rapid Induced Vomiting

In daily life, people often experience nausea without being able to vomit—typically due to consuming inappropriate or contaminated food. This sensation is extremely uncomfortable, prompting many individuals to attempt immediate vomiting. However, improper methods of inducing vomiting may injure the pharynx and esophagus. Below are four rapid emetic techniques.

Four Rapid Emesis Methods

1. Pharyngeal Stimulation

The patient gently inserts the middle finger into the pharynx to stimulate the posterior pharyngeal wall and base of the tongue, triggering the gag reflex and thereby inducing expulsion of gastric contents. Repeating this maneuver several times usually yields effective results. If gastric contents are particularly viscous and difficult to expel, the patient may first drink some water before attempting stimulation.

2. Nasogastric Tube Insertion

A nasogastric tube may be inserted, and gastric contents aspirated using negative pressure suction via the tube.

3. Salt Solution

Dissolve 200 g of table salt in warm water and drink it immediately. This irritates the gastric mucosa and induces rapid emesis.

4. Copper Sulfate or Zinc Sulfate

Administer 0.3–0.5 g of copper sulfate or zinc sulfate dissolved in 150–250 mL of warm water orally. Emetic effects typically occur within 30 minutes.

The above outlines four rapid emesis methods. In addition to these, gastric lavage via gastroscopy is considered the most effective approach—though it is also notably uncomfortable for patients. Furthermore, for individuals unable to ingest emetic agents orally, intramuscular injection of 3–5 mg apomorphine at a medical facility is recommended and reliably induces rapid emesis. We hope this information proves helpful.