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Waking up from surgery feeling sick to your stomach? Here is the truth about the powerful anti-nausea injection your care team may use.

Dr. Priya Sammani (MBBS)
Medically Reviewed by Dr. Priya Sammani (MBBS) ✓ Medically Reviewed
📅 Updated: Oct 22, 2026 • ⏱ 8 min read • Editorial Policy
Waking up from surgery feeling sick to your stomach? Here is the truth about the powerful anti-nausea injection your care team may use.
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Waking up from surgery can feel like a huge relief. However, feeling sick to your stomach or dizzy right after can quickly ruin that comfort.

If you or someone you love is facing an upcoming operation, you might worry about postoperative nausea and vomiting. These symptoms are very common side effects of anesthesia and surgical procedures.

Doctors often use specialized medicines called antiemetics to keep your stomach calm. One such medicine given in hospitals is called amisulpride injection.

This clear and friendly guide will explain everything you need to know about amisulpride injection. We will look at how it works, what you should tell your doctor before receiving it, potential side effects, and important safety tips.

Key Takeaways at a Glance

  • What it is: Amisulpride is a prescription medicine given as an intravenous injection to prevent and treat nausea and vomiting after surgery.
  • Hospital use only: Trained medical staff give this medicine directly into your vein within a hospital or clinic setting.
  • Medical history matters: Always tell your doctor if you have heart conditions, kidney issues, or electrolyte imbalances before receiving this medicine.
  • Watch for side effects: Most side effects are mild, but you must report allergic reactions or irregular heartbeats right away.
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What Is Amisulpride Injection?

Simply put, amisulpride is a prescription medicine used to prevent and treat nausea and vomiting after surgery. Doctors give this medicine directly into your vein as an injection.

Our bodies rely on specific chemical messengers that trigger the vomiting center in the brain. This medicine works by blocking those specific chemical signals from taking effect.

Clinically, amisulpride belongs to a group of medicines known as antiemetics. You can think of antiemetics simply as anti-nausea or anti-vomiting drugs.

In some regions, this medicine is available under the brand name Barhemsys. Doctors may sometimes prescribe or use similar medicines for other medical needs based on clinical guidelines.

If you have any questions about why your care team selected this particular treatment, feel free to ask your doctor or nurse. Open communication helps ensure you feel safe and confident throughout your recovery.

What to Tell Your Doctor Before Getting This Medicine

Before you receive amisulpride injection, your medical team needs a complete overview of your health history. Certain medical conditions can interact with this medicine or require special clinical monitoring.

Review the table below to understand why sharing your health history with your doctor is so important before surgery.

Your Health Condition Why Your Doctor Needs to Know
History of heart disease or irregular heart rhythms This medicine can affect your heart rhythm. Doctors must monitor patients with pre-existing heart conditions very closely.
Kidney disease or impaired kidney function Your kidneys filter medicines out of your body. Reduced kidney function might require your doctor to adjust your dose.
Low blood levels of magnesium or potassium Low electrolyte levels affect heart rhythm. Combining low levels with this medicine can increase potential heart risks.
Allergies to amisulpride, dyes, or other drugs Sharing past allergic reactions prevents severe immune responses or dangerous hypersensitivity events.
Pregnancy, trying to conceive, or breastfeeding Your doctor will weigh the potential benefits against any risks to ensure safety for both you and your baby.

How This Medicine Is Given and Important Facts

Medical professionals give amisulpride as an infusion directly into a vein. This process usually happens in a hospital, surgical center, or clinic under strict professional supervision.

Because doctors give this drug in controlled clinical environments, you will not take it at home. Your care team tracks your response closely while you recover from anesthesia.

Patient Safety Reminder: This medicine is meant exclusively for you. Never share hospital medicines or prescribed treatments with other patients or family members.

What to Do in Case of Overdosage

Because healthcare staff give amisulpride inside a secure hospital setting, accidental overdosage is rare. However, if anyone suspects an overdose occurred, notify the medical staff right away.

Emergency medical teams are fully equipped to manage unexpected drug reactions right away. If you are at home following discharge and experience severe symptoms, call emergency services right away.

In the US or Canada, dial 911. In the UK, dial 999. You can also contact your local poison control center or visit the nearest emergency department without delay.

Other Medicines That May Interact With Amisulpride

Certain medicines can interact poorly with amisulpride and cause unwanted side effects. Tell your doctor about every substance you take, including prescription drugs, over-the-counter medicines, vitamins, and herbal supplements.

Medicines Never to Combine With Amisulpride
Cisapride
Dofetilide
Dronedarone
Pimozide
Thioridazine
Medicines Requiring Careful Medical Monitoring
Droperidol
Levodopa
Ondansetron
Other medicines that prolong the QT heart interval

This list is not exhaustive. Be sure to mention if you smoke tobacco, drink alcohol, or use recreational substances, as these factors also influence your post-surgery recovery.

Potential Side Effects of Amisulpride Injection

Like all medical treatments, amisulpride can cause side effects. Some effects are mild and resolve quickly. This others require prompt medical attention.

The most important rule is to speak up. If you notice anything unusual while recovering in the hospital, let your nurse or doctor know right away.

Serious Symptoms: Notify Your Doctor Right away
Allergic reactions: Skin rash, hives, itching, swelling of your face, lips, tongue, or throat, and trouble breathing.
Heart rhythm changes: Fast or irregular heartbeat, severe dizziness, fainting, chest pain, or shortness of breath.
Low blood pressure: Lightheadedness, dizziness, fainting spells, or blurred vision when you try to stand up.
Low potassium levels: Muscle pain, muscle cramps, unusual weakness, irregular heartbeat, or constipation.
Mild Symptoms: Usually Not Serious, But Tell Your Doctor If They Persist
Chills or feeling cold: Shivering or feeling unusually cold as your body adjusts after anesthesia.
Bloating or stomach discomfort: Mild fullness or gassiness in your abdomen as your digestive tract wakes up.

When to Seek Emergency Help

Call 911 (US/Canada), 999 (UK), or notify your nurse right away if you experience any of the following emergency red flags:

  • Sudden chest pain or crushing pressure in your chest.
  • Severe difficulty breathing or sudden shortness of breath.
  • Swelling of your tongue, lips, or throat that makes swallowing hard.
  • Fainting or sudden loss of consciousness.

💡 Take-Home Message

Navigating recovery after surgery is much easier when you understand your medicines and care plan.

  • Amisulpride is an intravenous injection given in a hospital to prevent and control post-surgery nausea and vomiting.
  • Always share your complete medical history, especially heart or kidney conditions, with your doctor before treatment.
  • Report serious symptoms like allergic reactions or heart rhythm changes to your medical team right away.
  • Never hesitate to ask your doctor or nurse questions about your medicines. Understanding your health is your right.
❓ FAQ

Frequently Asked Medical Questions (FAQ)

Evidence-based clinical answers to common patient questions

What is amisulpride injection used for after surgery?

Doctors give amisulpride injection to prevent and treat nausea and vomiting that commonly occur after surgical procedures and general anesthesia. It helps keep your stomach calm so you can recover in comfort.

Can I receive amisulpride injection at home?

No, you cannot take this medicine at home. Doctors give amisulpride exclusively inside hospitals, surgical centers, or clinics as an intravenous infusion under close medical supervision.

What should I tell my doctor before getting this injection?

You should inform your doctor if you have any heart conditions, kidney problems, low potassium or magnesium levels, or past allergies to medicines. Also share a complete list of all prescription and over-the-counter drugs you take.

What are the common side effects of amisulpride?

Common, mild side effects can include chills, shivering, or mild stomach bloating as your body recovers. Serious side effects are rare but include allergic reactions, dizziness from low blood pressure, or irregular heartbeats.

Is amisulpride the same as Barhemsys?

Yes, Barhemsys is a well-known brand name for amisulpride injection. Both names refer to the exact same active medicine used to prevent postoperative nausea and vomiting.

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Verified Scientific & Medical References (PubMed / WHO)

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