Vomiting & Nausea Medicine in Bangladesh: A Complete 2026 Guide

If you have been hit by sudden nausea (the queasy feeling that you are about to be sick) or actual vomiting, here is the calm, practical answer first: most vomiting is short-lived and the single most important thing is to prevent dehydration by sipping fluids, not to rush for a strong tablet. Medicines that stop vomiting are called antiemetics, and in Bangladesh the ones you will meet most often are domperidone (Motigut, Omidon, Domidon), metoclopramide, antihistamines for motion sickness, and the stronger prescription drug ondansetron (Emeset). Each works differently, has its own cautions, and some carry real risks if used carelessly or for too long.

This guide explains what causes nausea and vomiting, how each class of antiemetic works, which are safe for short home use and which must come from a doctor, and the warning signs that turn vomiting into a medical emergency. One promise up front: this is general health education, not a prescription. Vomiting is a symptom, not a disease — the real skill is working out why it is happening. Where the cause is serious, no antiemetic will fix it, and masking the symptom can be dangerous, so when in doubt it is always safer to consult a doctor.

What causes nausea and vomiting?

Vomiting is your body forcefully emptying the stomach, usually triggered by a "vomiting centre" in the brain that many different signals can set off. The likely cause matters, because it decides whether a simple antiemetic is reasonable or whether you need urgent care. Common causes in Bangladesh include:

• Gastritis and acid reflux — an irritated or acidic stomach is one of the commonest causes of nausea, often with burning, bloating or a sour taste. When acidity is the driver, antacids or acid-reducing medicines (PPIs, H2 blockers) help more than a pure antiemetic; see our guide to acidity and gastric medicines, and if symptoms keep returning, a gastroenterologist can find out why.
• Food poisoning and stomach infections (gastroenteritis) — contaminated food or water, very common here, causes sudden vomiting often with diarrhoea, cramps and fever. The danger is fluid loss, not the vomiting itself.
• Motion sickness — nausea from travelling by bus, car, launch or plane, from a mismatch between what your eyes see and what your inner ear (balance organ) senses.
• Pregnancy (morning sickness) — nausea and vomiting, especially in early months, is extremely common and usually normal, but medicines in pregnancy must be doctor-guided only.
• Migraine — severe headaches are often accompanied by nausea and vomiting.
• Vertigo and inner-ear problems — a spinning sensation that brings on nausea, often needing antihistamine-type medicines.
• Medication side-effects — many drugs, including some antibiotics, painkillers, iron tablets and chemotherapy, cause nausea.
• Other causes — a stomach ulcer, gallbladder or liver problems, a gut blockage, certain infections, raised pressure in the brain or kidney problems can all cause vomiting and need proper diagnosis, not self-treatment.

Because the list is so wide, the safest mindset is simple: treat the dehydration, give a reasonable short-term antiemetic only if the cause is clearly minor, and look hard for the warning signs described later. You can check the ingredient and price of any anti-vomiting brand in our medicine directory before buying. An antiemetic reduces nausea and stops vomiting, but they do not all work the same way — they block different signals reaching the vomiting centre, which is why one tablet works for motion sickness but does little for an acidic stomach. The main families used in Bangladesh are prokinetics (domperidone, metoclopramide), antihistamines (dimenhydrinate, meclizine, promethazine), 5-HT3 blockers (ondansetron), and antacids or acid-reducers for acidity. We take each in turn below.

Prokinetics: domperidone (Motigut, Omidon, Domidon)

Among the prokinetics, domperidone — sold as Motigut, Omidon and Domidon — is probably the antiemetic most familiar to Bangladeshi households. It works by helping the stomach empty in the right direction and by blocking nausea (dopamine) signals in a part of the brain outside the main barrier. It is widely used for nausea, vomiting, bloating and the queasy fullness of indigestion and reflux. Read the generic overview on the domperidone page.

Domperidone is useful, but it is not a sweet to take freely for weeks — the single most important safety message about it. Key cautions:

• Short-term use only. Use the lowest effective dose for the shortest possible time (commonly only a few days), not for long-term, daily, indefinite use.
• Real heart-rhythm (QT-prolongation) risk. At higher doses, in older people, or combined with certain medicines, domperidone can affect the heart's electrical rhythm — a genuine, documented risk, which is exactly why dose limits and short courses exist.
• Avoid with certain drugs and heart conditions. It should be avoided in people with existing heart-rhythm problems or significant heart disease, and it interacts with several medicines (including some antibiotics and antifungals) that also affect heart rhythm. Always tell a pharmacist or doctor what else you take.
• Dose limits and special groups. Use with extra care, and only on medical advice, in the elderly, those with liver problems, and children, where weight-based dosing matters.

Metoclopramide is the other prokinetic. It works similarly and is effective, but it more readily crosses into the brain, so it can cause neurological side-effects known as extrapyramidal reactions: muscle stiffness, restlessness, abnormal movements, or unusual postures of the neck and eyes. These are more likely in young people, children and at higher or prolonged doses, so it is used cautiously, in short courses, and generally avoided as a casual self-purchase in the young. If anyone develops abnormal muscle movements after taking it, stop and seek medical advice.

Antihistamines for motion sickness and vertigo

For nausea caused by movement (motion sickness) or by vertigo and inner-ear problems, the most useful medicines are the older antihistamines: dimenhydrinate, meclizine and promethazine. They calm the balance signals from the inner ear and the vomiting centre. For travel sickness, take them before the journey starts, not after you already feel sick.

Their main, very predictable side-effect is drowsiness — helpful at night but a real hazard if you need to drive, operate machinery or stay alert. They can also cause a dry mouth, blurred vision and, in older people, confusion or difficulty passing urine, so the elderly and those with glaucoma or prostate problems should use them carefully, and avoid them alongside alcohol or other sedating medicines. Promethazine in particular should not be given to young children except on a doctor's advice, because it can cause dangerous breathing problems in the very young.

5-HT3 blockers: ondansetron (Emeset)

When vomiting is severe — after surgery, during chemotherapy, or with a serious infection — doctors reach for a stronger class, the 5-HT3 receptor blockers. The one you will see in Bangladesh is ondansetron, sold as Emeset. It blocks serotonin (5-HT3) signals that powerfully trigger vomiting, and is very effective where ordinary antiemetics fail. Read the generic overview on the ondansetron page.

Ondansetron is prescription-only for good reason. It is reserved for genuinely severe situations, the dose is chosen by a doctor, and it too can affect heart rhythm (QT prolongation) at higher doses or with other heart-rhythm drugs, so it is not for everyday queasiness. It can cause constipation, headache and dizziness. Treat it as a hospital-grade tool, not a first reach for mild nausea — and never give a child an adult dose on your own judgement.

Nausea and vomiting in pregnancy

Nausea and vomiting in pregnancy — often called morning sickness, though it can happen at any time of day — is one of the most common experiences of early pregnancy and usually normal, if unpleasant. The crucial rule is: in pregnancy, never self-medicate for vomiting. Not every antiemetic is suitable in pregnancy, the choice and dose differ, and they must be decided by a doctor who knows you are pregnant.

Simple, medicine-free measures often help and are worth trying first: small, frequent, bland meals; a few dry biscuits by the bed to eat before getting up; avoiding strong smells and oily or spicy food; sipping fluids steadily; and rest. If vomiting in pregnancy is severe — you cannot keep any food or fluid down, are losing weight, passing very little dark urine, or feeling faint — this can be a serious condition needing medical care, so see a doctor promptly rather than reaching for a tablet.

Vomiting in children and babies — rehydration comes first

Vomiting in children deserves special caution, and one principle stands above all: for a vomiting child, rehydration with ORS comes first, not adult antiemetic tablets. Children dehydrate far faster than adults, and that dehydration — not the vomiting itself — is what makes them seriously ill.

• Give ORS (oral rehydration saline) in small, frequent sips. A teaspoon every few minutes is better tolerated than a big glass that comes straight back up. Continue normal feeding once vomiting settles, and keep breastfeeding a baby.
• Do not give adult anti-vomiting medicines to a child on your own. Metoclopramide and domperidone need careful weight-based dosing and have particular risks in the young; ondansetron in children is a doctor's decision. Self-dosing a child is genuinely dangerous.
• Vomiting in a small baby or infant is always more serious. Forceful or projectile vomiting, a baby who refuses feeds, has a sunken soft spot, very few wet nappies, is unusually drowsy, or has a swollen tummy needs urgent attention.

For children, think fluids and a doctor, not the medicine cabinet, and when in doubt seek care early.

When vomiting is an emergency

Most vomiting is harmless and settles in a day, but it is sometimes a warning sign of something serious. Certain features mean you should stop self-treating and seek medical care immediately — go to a doctor or emergency department straight away if there is:

• Signs of dehydration — very little or no urine (dark, strong-smelling urine), dry mouth and tongue, sunken eyes, extreme weakness, dizziness on standing, or in a child no tears when crying and a sunken soft spot.
• Blood in the vomit, or vomit that looks like coffee grounds — this can mean bleeding in the stomach and needs urgent assessment.
• Forceful, projectile vomiting — especially in a baby, or persistent vomiting that will not stop.
• Severe or constant abdominal pain, a rigid, swollen tummy, or vomiting with no passing of stool or wind, which may suggest a blockage or surgical problem.
• Vomiting after a head injury, or with a severe headache, confusion, drowsiness or a stiff neck — which can point to a brain or serious infection problem.
• You cannot keep any fluid down at all for many hours, so dehydration is inevitable.
• High fever with a stiff neck, sensitivity to light, or a rash that does not fade — possible signs of a serious infection like meningitis.
• Vomiting in a very young infant, a frail elderly person, or in pregnancy — all of whom dehydrate quickly and are at higher risk.
• Green or yellow (bile) vomiting, chest pain, or vomiting with severe diabetes symptoms (deep breathing, fruity breath, drowsiness).

If any of these are present, no over-the-counter antiemetic is the answer — the cause must be found and treated. It is always better to be checked unnecessarily than to mask a dangerous problem.

Rehydration and home care

For ordinary, mild vomiting in an otherwise well adult, sensible home care matters more than any medicine:

• Rest the stomach briefly, then sip fluids. After vomiting, wait a little, then take small, frequent sips of water, ORS or clear fluids rather than gulping large amounts that may come back up.
• Use ORS to replace salts and water, especially if there is diarrhoea too — the single most important step in any vomiting illness, for adults and children alike.
• Reintroduce food gently once the nausea eases — bland, light items such as rice, banana, toast, khichuri or soup — and avoid oily, spicy and very sweet foods, alcohol, strong tea or coffee and fizzy drinks for a while.

If vomiting settles within a day and you are keeping fluids down, you usually do not need any tablet at all.

Antiemetic classes at a glance

Class (examples)	Best used for	Key cautions
Prokinetics — domperidone (Motigut, Omidon, Domidon)	Nausea, vomiting, bloating, reflux-type queasiness	Short-term use only; real heart-rhythm (QT) risk at higher doses; avoid in heart-rhythm disease and with certain drugs; care in elderly/children
Prokinetics — metoclopramide	Nausea and vomiting, including migraine-related	Can cause neurological (extrapyramidal) effects — stiffness, abnormal movements; avoid casual use in young people and children; short courses only
Antihistamines — dimenhydrinate, meclizine, promethazine	Motion sickness, vertigo, inner-ear nausea	Cause drowsiness — do not drive; dry mouth, care in elderly; promethazine not for young children without a doctor
5-HT3 blockers — ondansetron (Emeset)	Severe vomiting — post-surgery, chemotherapy, serious illness	Prescription-only; can affect heart rhythm; constipation, headache; not for casual everyday use
Antacids / PPIs / H2 blockers	Nausea driven by acidity, gastritis or reflux	Treats the acid cause; see the acidity medicine guide; persistent symptoms need a doctor

Use this table to understand your treatment, not to pick a strong medicine for yourself. The right choice depends entirely on the cause, your age, and your other conditions and medicines.

Using anti-vomiting medicine safely

• Treat the cause, not just the symptom. Vomiting is a signal; if it keeps coming back, find out why rather than taking an antiemetic again and again.
• Keep domperidone and metoclopramide to short courses at the lowest effective dose, respecting their heart and neurological cautions, and do not drive after a sedating antihistamine.
• Never self-prescribe ondansetron; for children, rehydrate with ORS first and never give adult antiemetics without a doctor; in pregnancy, only take what a doctor has prescribed knowing you are pregnant.
• Tell a pharmacist or doctor what else you take — some antiemetics interact with other drugs, especially those affecting heart rhythm — and check the ingredient and strength in our medicine directory before buying, while letting a doctor guide anything beyond brief, simple use.

When should you see a doctor?

See a doctor if vomiting lasts more than a day or two, keeps returning, or is not improving with simple care; if you cannot keep fluids down; if there is diarrhoea with signs of dehydration; if you have repeated nausea linked to acidity, reflux or a possible ulcer; if vomiting follows a new medicine; or if you are pregnant, elderly, or caring for an unwell young child. Seek emergency care immediately for any danger sign above — blood or coffee-ground vomit, severe abdominal pain, vomiting after a head injury, a stiff neck with fever, projectile vomiting in a baby, or inability to keep any fluid down. For persistent stomach symptoms you can see a gastroenterologist, and you can always consult a doctor on ChamberBD and book a chamber visit through app.chamberbd.com.

Frequently Asked Questions

What is the best medicine to stop vomiting in Bangladesh?

There is no single best medicine, because it depends on the cause. For general nausea and vomiting, prokinetics like domperidone (Motigut, Omidon, Domidon) are commonly used for a short course. For motion sickness or vertigo, antihistamines such as dimenhydrinate or meclizine work better, and severe vomiting may need prescription ondansetron from a doctor. In every case the most important first step is to prevent dehydration by sipping ORS and fluids.

Is domperidone safe to take regularly?

No, domperidone is meant for short-term use at the lowest effective dose, not regular long-term use. At higher doses, in older people, or with certain other medicines, it can affect the heart's electrical rhythm (QT prolongation), a real documented risk, and it should be avoided in people with heart-rhythm problems. If you need an anti-vomiting medicine again and again, see a doctor to find and treat the underlying cause instead.

Can I give vomiting medicine to my child?

You should not give adult anti-vomiting tablets to a child on your own. For a vomiting child the first and most important treatment is rehydration with ORS in small, frequent sips, while continuing normal feeding once vomiting settles. Metoclopramide, domperidone or ondansetron in children need careful weight-based dosing and carry particular risks, so they must be decided by a doctor. Vomiting in a small baby is always more serious and needs urgent care.

Is it safe to take anti-vomiting medicine during pregnancy?

Not on your own. Nausea and vomiting in pregnancy is very common and usually normal, but not every antiemetic is suitable in pregnancy, and the choice and dose must be decided by a doctor who knows you are pregnant. Simple measures help first: small frequent bland meals, dry biscuits before getting up, avoiding strong smells, and sipping fluids. If it is severe and you cannot keep anything down, see a doctor promptly.

When is vomiting a medical emergency?

Vomiting is an emergency if there is blood or coffee-ground material in the vomit, severe or constant abdominal pain, vomiting after a head injury, a high fever with a stiff neck, projectile vomiting in a baby, or if you cannot keep any fluid down and are becoming dehydrated (very little dark urine, dry mouth, sunken eyes, extreme weakness). Vomiting in a young infant, a frail elderly person, or in pregnancy is also higher risk. In these cases seek medical care immediately rather than taking a tablet.

What is the difference between domperidone and ondansetron?

Domperidone is a prokinetic used for everyday nausea, vomiting and bloating, and is available widely, but it is for short-term use and carries a heart-rhythm caution. Ondansetron (Emeset) is a stronger 5-HT3 blocker reserved for severe vomiting — such as after surgery or during chemotherapy — and is prescription-only. Ondansetron is much more powerful but should be used only when a doctor decides it is needed, not for mild, everyday queasiness.

How can I treat vomiting at home without medicine?

For mild vomiting, rest the stomach briefly, then take small frequent sips of water or ORS rather than large amounts at once. Use ORS to replace lost salts and water, especially if there is diarrhoea. Reintroduce food gently with bland items like rice, banana, toast or khichuri, and avoid oily, spicy and very sweet foods, alcohol and strong tea or coffee for a while. If you keep fluids down and it settles within a day, you often need no medicine.

This article is for general health education only and is not a substitute for professional medical advice; please consult a qualified doctor before taking any medicine, especially for a child, in pregnancy, or if any warning signs are present.