Vomiting
Vomiting is the forceful expulsion of stomach contents through the mouth. It is a symptom rather than a disease in itself, triggered by signals that travel between the gut, the inner ear, and a region of the brain called the vomiting centre. Most episodes are short-lived and self-resolving, but repeated vomiting can lead to dehydration and electrolyte loss, a particular concern in hot, humid climates.
Key points
- Rather than a disease of its own, vomiting is triggered when the gut, inner ear, and a specific brain region send conflicting signals.
- Gastroenteritis, motion sickness, medication side effects, and early pregnancy are among the most frequent triggers.
- Metoclopramide and domperidone both block dopamine receptors to speed stomach emptying and settle nausea, working at slightly different sites.
- Repeated episodes risk dehydration and loss of body salts, so persistent vomiting deserves medical attention.
What sets it off
The causes are wide-ranging. Gastroenteritis (from contaminated food or water) is among the most frequent, especially where food and water safety varies. Motion sickness is another common trigger for travellers moving between islands or mountainous areas. Other causes include medication side effects, inner-ear disturbances, early pregnancy, and post-operative recovery after anaesthesia.
Medicines that calm the vomiting reflex
Antiemetics work by blocking the chemical signals that activate the vomiting centre. Metoclopramide speeds gastric emptying and blocks dopamine receptors in the gut and brain, making it useful for nausea tied to delayed stomach emptying. Domperidone works through a similar mechanism but acts mainly at the gut level. Prochlorperazine targets the chemoreceptor trigger zone and is often used when vomiting is more severe or linked to vertigo. You can browse the full digestive health range for related medicines.
When to get help
Seek prompt medical attention if vomiting is accompanied by severe abdominal pain, blood in the vomit, signs of dehydration (dry mouth, no urine, dizziness), a high fever, or follows a head injury.
Further reading
What is vomiting?
Vomiting is the forceful expulsion of stomach contents through the mouth. It is a symptom rather than a disease in itself, triggered by signals that travel between the gut, the inner ear, and a region of the brain called the vomiting centre. Most episodes are short-lived and self-resolving.
What causes vomiting?
The causes are wide-ranging, and gastroenteritis from contaminated food or water is among the most frequent, especially where food and water safety varies. Motion sickness is another common trigger for travellers moving between islands or mountainous areas. Other causes include medication side effects, inner-ear disturbances, early pregnancy, and post-operative recovery after anaesthesia.
When should I see a doctor about vomiting?
Seek prompt medical attention if vomiting is accompanied by severe abdominal pain, blood in the vomit, signs of dehydration such as dry mouth, no urine or dizziness, a high fever, or if it follows a head injury. Repeated vomiting can also lead to dehydration and electrolyte loss, so persistent vomiting deserves medical attention.
Which medicines for vomiting does Yasabai sell?
The medicines listed for vomiting contain metoclopramide, domperidone and prochlorperazine. Examples include Motilium and Maxolon. Each product page lists the strengths and forms.
Do I need a prescription for medicines for vomiting in Thailand?
No, not online. Yasabai does not ask for a prescription to order medicines for vomiting. We are an online store, not a dispensing pharmacy; we arrange your order and delivery on your behalf.
Ordering without a prescription →Can I order medicines for vomiting online in Thailand?
Yes. Our pharmacy partners ship from India to Thailand and across Asia in discreet packaging. Standard Airmail takes up to 3 weeks; Express Tracked Courier takes up to 1 week.
How ordering works →