emvoid injection - Aprepitant (150mg) medicine

Emvoid Injection (Aprepitant 150 mg): Comprehensive Medicine Guide

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🏭 Torrent Pharmaceuticals Ltd 📦 Varies by brand 💊 Allopathy 📅 Updated: Sep 24, 2026
⚠️ Hepatotoxicity Risk 📋 Prescription Required 💊 Generic Available
Medically Reviewed
12 min read
Evidence: High
Reviewed by
SaathiMed Expert Panel | Sep 24, 2026

When to Call Your Doctor IMMEDIATELY

  • Difficulty breathing or swallowing
  • Swelling of face, lips, or throat
  • Severe rash or blistering skin
  • Yellowing of eyes or skin
  • Severe abdominal pain
  • Decreased urine output
  • Chest pain or irregular heartbeat

If experiencing severe symptoms, call emergency services immediately.

What is emvoid injection used for?

This medicine is an injectable antiemetic containing Aprepitant 150 mg. It is used to prevent nausea and vomiting after surgery or chemotherapy. It works by blocking NK1 receptors in the brain. It is given by a healthcare professional as an intravenous injection.

  • Generic Name: Aprepitant (150mg)
  • Manufacturer: Torrent Pharmaceuticals Ltd
  • Form: Allopathy
  • Pregnancy Category: Consult doctor
  • Prescription Required: Yes

🇮🇳 emvoid injection के बारे में (Hindi Summary)

उपयोग: यह दवा एप्रेपिटेंट 150 मिलीग्राम इंजेक्शन है, जिसका उपयोग सर्जरी के बाद और कीमोथेरेपी के कारण होने वाली मतली और उल्टी को रोकने के लिए किया जाता है। यह दवा मस्तिष्क में एनके1 रिसेप्टर्स को ब्लॉक करके काम करती है, जिससे उल्टी की प्रतिक्रिया रुक जाती है। यह केवल एक डॉक्टर या स्वास्थ्य पेशेवर द्वारा नस के माध्यम से दी जाती है।

साइड इफेक्ट्स: इस दवा के सामान्य दुष्प्रभावों में थकान, सिरदर्द, कब्ज और कम रक्तचाप शामिल हैं। कुछ रोगियों को इंजेक्शन की जगह पर दर्द या लालिमा हो सकती है। गंभीर दुष्प्रभाव दुर्लभ हैं, लेकिन एलर्जी प्रतिक्रिया, जैसे सांस लेने में कठिनाई, चेहरे या गले में सूजन, या गंभीर दाने हो सकते हैं। ऐसे लक्षण दिखने पर तुरंत डॉक्टर से संपर्क करें।

सुरक्षा सलाह: यह दवा केवल एक योग्य स्वास्थ्य पेशेवर द्वारा अस्पताल या क्लिनिक में ही दी जानी चाहिए। इस दवा को लेने से पहले अपने डॉक्टर को अपनी सभी चिकित्सीय स्थितियों और दवाओं के बारे में बताएं। इंजेक्शन लेने के बाद तुरंत वाहन न चलाएं या मशीनरी न चलाएं। कम से कम 24 घंटे तक शराब का सेवन न करें। यदि आप गर्भवती या स्तनपान करा रही हैं, तो डॉक्टर से सलाह लें।

💡 Did You Know? The first generic medicine was introduced in India in 1970 after the Patents Act was amended.

💊 emvoid injection Uses & Benefits

  • [{"condition":"Postoperative nausea and vomiting (PONV)","description":"This medicine is used to prevent nausea and vomiting after surgery in adults.
  • It is often given before the surgery or immediately after.","evidence":"Well-established"},{"condition":"Chemotherapy-induced nausea and vomiting (CINV)","description":"This medicine is used in combination with other antiemetics to prevent nausea and vomiting caused by highly emetogenic chemotherapy.","evidence":"Well-established"}]

Off-label uses: [{"condition":"Refractory nausea and vomiting","description":"In some cases, this medicine may be used off-label for severe nausea and vomiting that has not responded to other treatments.","evidence":"Limited"}]

Primary treatment for: Postoperative nausea and vomiting

Also treats: Chemotherapy-induced nausea and vomiting

📋 Drug Information

Generic Name(s)Aprepitant (150mg)
Brand Nameemvoid injection
ManufacturerTorrent Pharmaceuticals Ltd
Packaging / FormVaries by brand (Allopathy)
Therapeutic ClassGASTRO INTESTINAL
Action ClassNK1 Antagonists
Route of AdministrationParenteral (intravenous)
StorageStore vials refrigerated at 2°C to 8°C (36°F to 46°F). Protect from light. Do not freeze. Once reconstituted, the solution should be used immediately or stored as per the manufacturer's instructions.
Shelf Life24 months from the date of manufacture when stored under recommended conditions.
WHO GuidelineNot established from the available information.
ICMR GuidelineNot established from the available information.

👨‍⚕️ Doctor's Practical Tips

Evidence-based practical advice from experienced clinicians

1
Administer this medicine 30 minutes before surgery or chemotherapy for best effect.
2
Monitor blood pressure during and after infusion.
3
Assess liver function before and during treatment.
4
Advise patients to use backup contraception if on oral contraceptives.
5
Watch for signs of allergic reactions during infusion.
6
Adjust dose in severe hepatic impairment or avoid use.

🔍 Is This Medicine Right for Your Symptom?

Educational reference. Always consult a doctor for diagnosis.

✅
Nausea and vomiting after surgery
This medicine is commonly prescribed to prevent this.
Likely Use
✅
Nausea and vomiting due to chemotherapy
This medicine is used as part of a regimen to prevent this.
Likely Use
❌
Fever
This medicine is not a fever reducer.
Not Primary

🔬 How This Medicine Works (Pharmacology)

Pharmacokinetics

AbsorptionFollowing intravenous administration, aprepitant is rapidly distributed. The absolute bioavailability of the intravenous formulation is high, as it bypasses the gastrointestinal absorption process. The peak plasma concentration is achieved shortly after the end of infusion.
DistributionAprepitant is highly protein-bound and distributes extensively into tissues. It crosses the blood-brain barrier, which is essential for its central antiemetic action.
Protein BindingAprepitant is approximately 97% bound to plasma proteins.
MetabolismAprepitant undergoes extensive metabolism in the liver, primarily by cytochrome P450 3A4 (CYP3A4) enzymes. It forms several metabolites, which are mostly inactive.
Half-LifeThe elimination half-life of aprepitant is approximately 9 to 13 hours.
ExcretionAprepitant and its metabolites are excreted primarily via the biliary route into feces, with a smaller portion excreted in urine.
BioavailabilityThe intravenous formulation has a bioavailability of approximately 100%, as it is administered directly into the bloodstream.
Onset of ActionThe antiemetic effect of aprepitant begins within 1 hour after intravenous administration.
Peak Plasma TimePeak plasma concentration is reached at the end of a 30-minute infusion.
Duration of ActionThe antiemetic effect of aprepitant lasts for approximately 24 hours after a single dose.

How It Works

Aprepitant is a selective high-affinity antagonist at the neurokinin-1 (NK1) receptor. It works by blocking the binding of substance P, a neuropeptide that is involved in the vomiting reflex. By preventing substance P from binding to NK1 receptors in the brain and gastrointestinal tract, aprepitant inhibits the signals that trigger nausea and vomiting. This action is particularly effective in preventing delayed nausea and vomiting associated with chemotherapy and surgery.

Mechanism Steps

1
Binding to NK1 receptors: Aprepitant binds selectively and with high affinity to NK1 receptors located in the brain and gut.
2
Blockade of substance P: By occupying the NK1 receptor, aprepitant prevents substance P, a natural emetic neurotransmitter, from binding and activating the receptor.
3
Inhibition of vomiting reflex: The blockade of NK1 receptors interrupts the signaling pathways that lead to nausea and vomiting, thereby preventing these symptoms.

💡 How to Take emvoid injection

Strength: Aprepitant 150 mg injection (single-use vial)

1This medicine is administered by a healthcare professional as an intravenous injection.
2The injection is given slowly over 30 minutes.
3You will be monitored for any reactions during and after the injection.
4Follow your doctor's instructions regarding other medications to take before or after this injection.
5Do not attempt to self-administer this medicine.

Dosage Information

Adult DosageThe recommended dose of this medicine for prevention of postoperative nausea and vomiting is 150 mg administered as a single intravenous injection over 30 minutes, starting approximately 30 minutes before induction of anesthesia. For prevention of chemotherapy-induced nausea and vomiting, the dose is typically 150 mg on Day 1, followed by 80 mg orally on Days 2 and 3, in combination with other antiemetics. Dose must be individualized by a qualified clinician based on indication, age, weight, renal and hepatic function.
Pediatric DosagePediatric dosing is not established from available information. Consult a pediatrician.
Elderly DosageNo dose adjustment is required for elderly patients based on age alone. However, elderly patients may be more sensitive to the effects of the drug, and monitoring for side effects is recommended.
Renal ImpairmentNo dose adjustment is necessary for patients with renal impairment. However, aprepitant has not been studied extensively in patients with severe renal impairment.
Hepatic ImpairmentFor patients with mild to moderate hepatic impairment (Child-Pugh Class A or B), no dose adjustment is needed. For severe hepatic impairment (Child-Pugh Class C), there are no clinical data; use with caution and consider alternative therapy.
Maximum Daily DoseThe maximum recommended daily dose is 150 mg for the injectable form when used for PONV. For CINV, the maximum daily dose is 150 mg on Day 1 and 80 mg on Days 2 and 3.

Dosage Timeline

🌅 Morning ❌ ☀️ Afternoon ❌ 🌆 Evening ❌ 🌙 Night ❌

🍽️ Food Timing Guide

Grapefruit juice
Avoid
May increase drug levels and side effects.

⏰ What to Do If You Miss a Dose

📌 If a dose is missed in the hospital setting
→ Inform the nursing staff immediately.
💡 They will administer the dose if appropriate.
📌 If you miss an oral dose at home (for follow-up days)
→ Take it as soon as you remember, unless it is almost time for the next dose.
💡 Do not double the dose.

⚠️ Side Effects of emvoid injection

✅ Common Side Effects

Fatigue (Common (5-10%))
Rest and avoid strenuous activities. Consult your doctor if fatigue persists or worsens.
Headache (Common (5-10%))
Take over-the-counter pain relief if needed, but consult your doctor first. Usually resolves on its own.
Constipation (Common (5-10%))
Increase fluid and fiber intake. Consult your doctor if constipation persists for more than 3 days.
Hypotension (Common (5-10%))
Lie down and elevate your legs if you feel dizzy. Inform your doctor if you experience persistent low blood pressure.
Injection site pain (Common (5-10%))
Apply a cold compress to the site. Report severe pain or redness to your healthcare provider.

🚨 Serious Side Effects

Severe allergic reaction (anaphylaxis) (Rare (<0.1%))
Seek immediate medical attention if you experience difficulty breathing, swelling of the face, lips, or throat, or a severe rash.
Liver toxicity (Rare (<0.1%))
Report symptoms such as yellowing of the skin or eyes, dark urine, or abdominal pain to your doctor immediately.

⚠️ Rare Side Effects

Stevens-Johnson syndrome
Seek emergency medical care if you develop a painful rash with blisters or peeling skin.

Consult your doctor if you experience any unusual symptoms.

🔬 Drug Interactions

Drug Severity Effect
Ketoconazole Major
Rifampin Major
Warfarin Moderate
Oral contraceptives Moderate
Dexamethasone Minor

🚨 Major Interactions

  • CYP3A4 inhibitors (e.g., ketoconazole, clarithromycin)
  • CYP3A4 inducers (e.g., rifampin, carbamazepine)

⚡ Moderate Interactions

  • Warfarin
  • Oral contraceptives

🍷 Alcohol Interaction

Alcohol may increase the risk of dizziness and drowsiness when taken with this medicine. It is advisable to avoid alcohol for at least 24 hours after receiving this injection.

🔎 Check Your Other Medicines

Educational tool. Always confirm with your doctor or pharmacist.

🛡️ Safety & Warnings

🚫 Contraindications

["Hypersensitivity to aprepitant or any component of the formulation","Severe hepatic impairment (Child-Pugh Class C)","Concomitant use with pimozide (due to risk of serious cardiac arrhythmias)"]

⚠️ Warnings & Precautions

["Use with caution in patients with moderate hepatic impairment; dose adjustment may be needed.","May cause dizziness; avoid driving or operating machinery until effects are known.","May reduce the efficacy of hormonal contraceptives; use backup contraception.","Monitor for signs of allergic reactions during and after infusion.","Use with caution in elderly patients; no specific dose adjustment is required but monitor closely."]

🤱 Lactation Safety

It is not known whether aprepitant is excreted in human breast milk. Because many drugs are excreted in human milk, caution should be exercised when this medicine is administered to a nursing woman. Consult your doctor to decide whether to discontinue nursing or the drug, taking into account the importance of the drug to the mother.

💊 Overdose Management

There is limited information on overdose with aprepitant. In case of overdose, discontinue the drug and provide supportive care. Monitor vital signs and treat symptoms as they occur. Aprepitant is not removed by hemodialysis.

⏰ Missed Dose

Since this medicine is administered by a healthcare professional in a controlled setting, missed doses are unlikely. If a dose is missed, it should be administered as soon as possible if the patient is still in the clinical setting. Otherwise, the next dose should be given according to the prescribed schedule. Do not double the dose.

Additional Safety Advice

General Safety

This medicine should only be administered by a qualified healthcare professional in a properly equipped medical facility. Before receiving this medicine, inform your doctor about all your medical conditions, especially liver problems, and all medications you are taking, including over-the-counter drugs and herbal supplements. Do not drive or operate heavy machinery immediately after receiving this injection, as it may cause dizziness or fatigue. Avoid alcohol consumption for at least 24 hours after receiving this medicine, as it may increase drowsiness. If you are pregnant or breastfeeding, discuss the risks and benefits with your doctor before receiving this medicine. Keep all follow-up appointments and report any side effects to your healthcare provider.

👴 Special Considerations for Elderly

💡 For Patients Above 65

Elderly patients may be more sensitive to the side effects of this medicine, such as dizziness and low blood pressure. Close monitoring is recommended.

🤰 Pregnancy Planning (TTC)

If you are planning to become pregnant, discuss with your doctor before receiving this medicine. It is classified as Pregnancy Category B, but use only if clearly needed.

🏥 Post-Surgery Considerations

This medicine is often used to prevent nausea and vomiting after surgery. It is usually given before or during surgery. Follow your surgeon's instructions for postoperative care.

🦷 Dental Procedures

If you are scheduled for dental procedures, inform your dentist if you have recently received this medicine. It may interact with other medications used during dental work.

💚 Lifestyle Tips for Better Results

🏃
Stay hydrated by drinking plenty of fluids.
🥗
Eat small, frequent meals to help with nausea.
😴
Avoid strong odors that may trigger nausea.
💧
Get adequate rest after surgery or chemotherapy.
🧘
Follow your doctor's advice on activity restrictions.

🏋️ Exercise Considerations

Avoid strenuous exercise immediately after receiving this medicine, especially if you feel dizzy or fatigued. Gradually resume activities as tolerated.

🥗 Diet Recommendations

Eat bland, easy-to-digest foods like crackers and toast.
Avoid spicy, greasy, or heavy meals.
Sip clear fluids throughout the day.
Avoid alcohol for at least 24 hours.

💼 Impact on Daily Work & Life

This medicine may cause dizziness or fatigue, which can affect your ability to drive or operate machinery. It is best to rest after receiving the injection and avoid demanding tasks until you feel fully alert.

🛑 When to Stop This Medicine

This medicine is given as a single dose or short course. Do not stop any prescribed medication without consulting your doctor. If you experience severe side effects, seek medical attention immediately.

📅 Long-Term Use Effects

This medicine is typically used for short-term prevention of nausea and vomiting. Long-term effects are not well studied as it is not intended for chronic use. Monitoring of liver function may be required if used repeatedly.

🌿 Non-Medicine Approaches

These can complement medicine but do not replace prescribed treatment.

Other antiemetics (e.g., ondansetron, dexamethasone)

These can be used alone or in combination with aprepitant for prevention of nausea and vomiting.

Evidence: Well-established
Non-pharmacological methods (e.g., acupuncture, ginger)

May help with mild nausea but not a substitute for medical treatment.

Evidence: Limited

💉 Vaccination Considerations

💉 If You're Getting Vaccinated

There are no known interactions between this medicine and vaccines. However, consult your doctor before receiving any vaccine around the time of treatment.

📦 Storage Guide

✅ DO

Store refrigerated at 2°C to 8°C

❌ DON'T

Do not freeze

✅ DO

Keep in original carton to protect from light

❌ DON'T

Do not use if solution is discolored or contains particles

✅ DO

Use immediately after reconstitution

❌ DON'T

Do not store reconstituted solution for later use

✈️ Traveling with This Medicine

This medicine is administered in a healthcare setting, so travel advice is not applicable. However, if you are traveling after receiving this medicine, carry a copy of your prescription and medical records. Store any take-home medications as directed. Inform your doctor if you plan to travel across time zones, as it may affect dosing schedules for other medications.

💰 Cost Analysis & Savings

👥 Real Patient Stories

Educational, anonymized scenarios. Individual results may vary.

👤 A 55-year-old woman undergoing chemotherapy for breast cancer
She received this medicine before her chemotherapy session. She experienced no nausea or vomiting during the first 24 hours, which was a significant improvement from her previous cycles. She reported mild fatigue but was able to continue her daily activities.
💡 Lesson: This medicine can effectively prevent chemotherapy-induced nausea when given as part of a regimen.
👤 A 40-year-old man scheduled for abdominal surgery
He was given this medicine 30 minutes before surgery. After waking up, he did not experience any nausea or vomiting, which he had in previous surgeries. He had a mild headache that resolved with rest.
💡 Lesson: This medicine is effective in preventing postoperative nausea and vomiting when administered before surgery.

💬 Questions Patients Often Ask

Q: How long does it take to work?

A: This medicine starts working within 1 hour after administration and its effects last for about 24 hours.

Q: Can I drive after receiving this medicine?

A: It is advisable to avoid driving or operating machinery immediately after receiving this medicine, as it may cause dizziness or fatigue.

Q: Is this medicine safe for children?

A: Pediatric dosing is not established. Consult a pediatrician for use in children.

🤔 Common Patient Concerns

💭 These are the concerns patients most commonly raise

  • Can I take this medicine at home?
  • How long does the effect last?
  • Will it interact with my other medications?
  • Is it safe during pregnancy?
  • What if I miss a dose?
  • Can I drink alcohol after receiving this medicine?

🔄 Substitutes for emvoid injection

View All

Alternative brands with exact same active ingredient:

Medical Note: Always consult your doctor before switching medications.

🛑 Myths vs. Facts

  • Myth: This medicine can be taken orally.
    Fact: This medicine is an injection and must be given intravenously by a healthcare professional.
  • Myth: This medicine can be used to treat existing nausea.
    Fact: This medicine is for prevention of nausea and vomiting, not for treating it once it has started.

🔄 Alternative Options

Generic Alternatives

  • Aprepitant injection

Brand Alternatives

  • Emend
  • Aprepit
  • Aprecap

📊 Comparison with Similar Medicines

[{"medicine":"Ondansetron","class":"5-HT3 receptor antagonist","route":"IV/ Oral","onset":"Rapid","duration":"4-8 hours","key_difference":"Different mechanism; more effective for acute nausea."},{"medicine":"Dexamethasone","class":"Corticosteroid","route":"IV/ Oral","onset":"Slow","duration":"Long","key_difference":"Used as adjunct; different mechanism."}]

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