A To Z Amino Tablet
Alkem Lab - Tablet - 15 S
₹270
Prescription requiredAlkem LabAntiemetic
Ondem Syrup
Ondansetron (2mg/5ml)
₹13In stock
Order on WhatsAppDelivered across India. ₹49 delivery, free above ₹999.
This medicine needs a prescription.
You can pay now and add the prescription afterwards. We pack your order only after a pharmacist verifies it.
Upload prescriptionNo prescription? A doctor will call you (free)
A doctor decides whether a prescription can be issued. If it is not issued, the prescription items in your order are cancelled and refunded. You choose this at checkout.
Ondem Syrup is used for prevention and treatment of nausea and vomiting due to chemotherapy, radiotherapy, and post-operative states; doctor may also prescribe for severe vomiting due to other causes.
Original brandsFrom authorised distributors or the brand's own supply chain.
The price on the packYou pay the printed MRP. No inflated MRPs, no fake strike-throughs.
Licensed pharmacyPrescription medicines are checked by our pharmacist before packing.
7 days to report a problemReport a wrong or damaged item within 7 days of delivery and our team reviews a return.
Key details
Salt: Ondansetron (2mg/5ml)
Available variants: syrup 30 Ml
Price: ₹13 (₹0.42 per ml)
Prescription: Required
Manufacturer: ALKEM LAB
Ordering notes
Orders placed before 2 pm ship the same day, later ones the next day, every day of the week. Chennai: next-day delivery by Porter, ₹99 (free above ₹1,499). Learn more
Returns & refunds: orders can be cancelled before dispatch; after dispatch, returns depend on the item category. Read the full policy
Composition of Ondem Syrup
Ondem Syrup contains Ondansetron (2mg/5ml). It belongs to the 5-HT3 receptor antagonist (serotonin antagonist) class of medicines.
Uses of Ondem Syrup
- Prevention
- Treatment of nausea
- Vomiting due to chemotherapy
- Radiotherapy
- And post-operative states
- Doctor may also prescribe for severe vomiting due to other causes
Benefits of Ondem Syrup
- In Nausea
- Ondem blocks the signals to the brain's vomiting centre, settling the nausea of illness, travel, surgery or chemotherapy.
- In Vomiting
- Ondem stops vomiting so that fluids and other medicines stay down, preventing the dehydration that repeated vomiting causes.
- In Bloating
- Ondem helps the stomach empty more quickly, easing the bloating and early fullness that follow a meal.
- In Slow stomach emptying
- Ondem strengthens the stomach's movements so food passes through more normally, relieving nausea, fullness and reflux.
How Ondem Syrup works
Ondansetron is a selective 5-HT3 (serotonin) receptor antagonist. It blocks serotonin receptors in the gut and the vomiting center in the brain, reducing the nausea and vomiting reflex.
How to take Ondem Syrup
Oral syrup. Shake well before use and measure with a calibrated spoon/cup. Take exactly as prescribed; can be taken with or without food. Dose depends on age/weight and the cause of vomiting; do not exceed the prescribed frequency.
Take it exactly as your doctor prescribed. Do not change the dose or stop early on your own.
Missed dose and overdose
If you miss a dose
Take it as soon as you remember. If your next dose is almost due, skip the one you missed — never take two doses together to catch up.
If you take too much
An overdose of this medicine can cause drowsiness, disorientation and abnormal muscle movements. Do not wait for symptoms to appear — go to the nearest emergency department and take the pack or strip with you.
Side effects of Ondem Syrup
Most side effects of Ondem are mild and settle as the body gets used to the medicine. The ones reported most often are:
- Headache
- constipation
- diarrhea
- dizziness
- fatigue
- flushing
- dry mouth
Stop the medicine and get help at once for a rash, swelling of the face or lips, wheezing or difficulty breathing. Tell your doctor about any side effect that persists or worries you.
Safety advice for Ondem Syrup
- AlcoholUNSAFE
- Do not drink alcohol while taking this medicine.
- PregnancyCONSULT YOUR DOCTOR
- Consult your doctor before using this in pregnancy.
- Breast feedingCONSULT YOUR DOCTOR
- Consult your doctor before using this while breastfeeding.
- DrivingCAUTION
- May cause drowsiness or affect your concentration. Do not drive until you know how it affects you.
- KidneyCAUTION
- Use with caution if you have kidney disease. Your doctor may adjust the dose or monitor your kidney function.
- LiverCONSULT YOUR DOCTOR
- Consult your doctor if you have liver disease.
Warnings and precautions
Prescription (Schedule H) medicine. Use with caution in patients with heart rhythm disorders, congenital long QT syndrome, bradyarrhythmias, electrolyte disturbances (low potassium/magnesium), or those taking other QT-prolonging drugs. Seek medical help for palpitations, fainting, severe dizziness, or signs of allergic reaction. Use caution in liver impairment (may need dose adjustment). Not for self-treatment of persistent vomiting—evaluate dehydration and underlying cause, especially in children.
Do not take Ondem if
Not for anyone with a known allergy to this medicine or to any ingredient in the pack. Not for people with bleeding, blockage or perforation of the gut, or with certain heart rhythm disorders.
Interactions with other medicines
QT-prolonging medicines (e.g., amiodarone, sotalol, certain antipsychotics and antibiotics like macrolides/fluoroquinolones), serotonergic drugs (SSRIs/SNRIs, tramadol, linezolid) due to serotonin syndrome risk, apomorphine (contraindicated—severe hypotension/loss of consciousness), strong CYP3A4 inducers (e.g., rifampicin, phenytoin, carbamazepine) may reduce effect
How to store Ondem Syrup
Store below 25°C, protected from light and moisture. Keep bottle tightly closed. Do not freeze. Keep out of reach of children.
Quick tips for Ondem Syrup
- Ondem Syrup effectively controls nausea and bouts of vomiting reflex in children undergoing chemotherapy or radiotherapy sessions.
- It is fast-acting and starts working within 30 minutes.
- Practice self-care measures: Give plenty of fluids to your child to avoid dehydration Avoid giving fried and spicy food or heavy meals to your child.
- Ensure that your child eats slowly and in small proportions.
Manufacturer and class
- Manufacturer:
- ALKEM LAB
- Therapeutic class:
- Antiemetic
- Drug class:
- 5-HT3 receptor antagonist (serotonin antagonist)
- Chemical class:
- Carbazoles
Substitutes for Ondem Syrup
Medicines with the same active ingredient (Ondansetron (2mg/5ml)). Ask your doctor or pharmacist before switching brands.
| Medicine | Pack | Price | vs Ondem Syrup |
|---|---|---|---|
| Vomishunt 2 ml Injection | injection · 2ML | ₹12 | 6% cheaper |
| Vomino InjectionScott Edil Pharmacia Ltd | injection · 2 Ml | ₹13 | 5% more |
| Vomikind SyrupMANKIND (PHARMA) | syrup · 30 Ml | ₹40 | 214% more |
| Emeset 2 mg Juicy Lemon SyrupCIPLA LIMITED | syrup · 30 Ml | ₹40 | 217% more |
| Zofer SyrupSUN PHARMA 2 | syrup · 30ML | ₹40 | 217% more |
| Vomiford 30 ml Drops | drop · 30ML | ₹42 | 230% more |
| Ondet 4 mg Tablet | tablet · 1X10 | ₹49 | 288% more |
| Vomikind MD 2 mgMANKIND (PHARMA) | tablet · 10`S | ₹51 | 301% more |
More from Alkem Lab
View categories
A To Z Gold Capsule
Alkem Lab - Capsule - 15 S
₹241.10
A To Z Woman Capsule
Alkem Lab - Capsule - 15 S
₹390
Alkepin Odt 100
Alkem Lab - 10 S
₹90.93
Alkepin Odt 50
Alkem Lab - 10 S
₹55.76
Alprovit Active
Alkem Lab - 200 G
₹409.10
Alprovit Plus Syrup
Alkem Lab - Syrup - 200 ml
₹229.65
Alsita 100 mg Tablet
Alkem Lab - Tablet - 100 mg - 10 S
₹133.50
Prescription required
More in Nausea & Vomiting
View categories
Aeoventa Tablet
Aeon Pharma Corporation - Tablet - 14 S
₹365.50
Prescription required
Briv Syrup
Dr Reddys Laboratories Ltd - Syrup - 10mg - 100 ml
₹446
Prescription required
Rx
Car-Key 3.125 mg Tablet
Beat Pharma - Tablet - 3.125 mg - 10 S
₹48.38
Prescription required
Carnisure 500 Tablet
Torrent Pharmaceuticals Ltd - Tablet - 10 Tablet
₹437.80
Prescription required
Clomic S Ointment
East West Pharma - Ointment - 0.05%W/W + 3%W/W - 15 G
₹108
Prescription required
Rx
Clonil 75 SR
Intas Pharmaceuticals Ltd - 15 S
₹265.55
Prescription required
Crealap 25K Capsule
Walfs Pharma - Capsule - 10 S
₹468.75
Prescription required
Duralast 30 mg Tablet
Sun Pharma 2 - Tablet - 30 mg - 4 S
₹225
Prescription required
Popular on PingMeDoc Pharmacy
View categories
Zerolac Powder
Raptokos & Brett - Powder - 400 G
₹308
Whisper Ultra Night Sanitary Pads Xxxl
Procter & Gamble Hygiene And Health Care Ltd - 10 Piece
₹350
Rx
Zedott Baby Sachet
Torrent Pharmaceuticals Ltd - Powder - 1 G
₹21.65
Prescription required
Xyzal Syrup
Dr Reddys Laboratories Ltd - Syrup - 60 ml
₹186.09
Whisper Choice Ultra Sanitary Pads Xl
Procter & Gamble Hygiene And Health Care Ltd - 6 Piece
₹50
Whisper Choice All Day Cottony Softness Sanitary Pads Xl
Procter & Gamble Hygiene And Health Care Ltd - 6 Piece
₹42
Xyzal Nasal Spray
Dr Reddys Laboratories Ltd - Spray - 6 G
₹588.28
Prescription required
Zytee Rb Oral Gel
Gel - 10 ml
₹120.50
Ondem Syrup FAQs
What is Ondem Syrup used for?
Ondem Syrup is commonly used for Prevention and treatment of nausea and vomiting due to chemotherapy, radiotherapy, and post-operative states; doctor may also prescribe for severe vomiting due to other causes. Always follow your doctor's advice, this information is for educational purposes and not a substitute for professional medical guidance.
What are the benefits of Ondem Syrup?
Nausea: Ondem blocks the signals to the brain's vomiting centre, settling the nausea of illness, travel, surgery or chemotherapy. It is also used for vomiting, bloating, slow stomach emptying.
What is the salt in Ondem Syrup?
Ondem Syrup contains Ondansetron (2mg/5ml). If you are allergic to any of these active ingredients or excipients, do not take this medicine and speak to your doctor first.
How should I take Ondem Syrup?
Oral syrup. Take it exactly as prescribed; do not change the dose or stop early without talking to your doctor.
How does Ondem Syrup work?
Ondansetron is a selective 5-HT3 (serotonin) receptor antagonist.
Is Ondem Syrup a prescription medicine?
Yes. Ondem Syrup is a prescription-only (Rx) medicine. Upload a valid prescription from a registered medical practitioner during checkout. We cannot dispense it without a valid Rx.
What are the common side effects of Ondem Syrup?
The side effects reported most often with Ondem are Headache, constipation, diarrhea, dizziness, fatigue. Most are mild and settle as the body adjusts; tell your doctor if any of them persist or worry you, and stop the medicine and seek help at once for a rash, swelling of the face or lips, or difficulty breathing.
Can Ondem Syrup be taken during pregnancy?
Consult your doctor before taking Ondem Syrup in pregnancy. Always tell your doctor if you are pregnant, planning a pregnancy or breastfeeding before starting Ondem.
Can I drink alcohol while taking Ondem Syrup?
No. Do not drink alcohol while taking Ondem Syrup.
What if I miss a dose of Ondem Syrup?
Take it as soon as you remember.
Is Ondem Syrup habit forming?
No. Ondem Syrup is not known to be habit forming when taken as prescribed.
Is there a cheaper substitute for Ondem Syrup?
Vomishunt 2 ml Injection has the same active ingredient and strength and is listed from ₹12 on PingMeDoc Pharmacy. Ask your doctor or pharmacist before switching brands, the salt is the same, but excipients and release profiles can differ.
How much does Ondem Syrup cost on PingMeDoc Pharmacy?
Ondem Syrup starts at ₹13 on PingMeDoc Pharmacy. Available in syrup 30 Ml. Final price is confirmed at checkout and may vary by variant and location.
Who manufactures Ondem Syrup?
Ondem Syrup is manufactured by ALKEM LAB. PingMeDoc Pharmacy sources medicines only from licensed manufacturers and distributors.
How is Ondem Syrup delivered?
Ondem Syrup is delivered across India from our licensed pharmacy. Orders placed before 2 pm ship the same day, later ones the next day, every day of the week. Chennai: next-day delivery by Porter, ₹99 (free above ₹1,499). Enter your pincode on the page to see the date it reaches you.
Ondem Syrup, Quick facts
- Salt
- Ondansetron (2mg/5ml)
- Form
- syrup
- Price
- ₹13 (₹0.42 per ml)
- Prescription
- Required (Rx)
- Schedule
- Schedule H
- Brand
- ALKEM LAB
- Manufacturer
- ALKEM LAB
- Therapeutic class
- Antiemetic
- Drug class
- 5-HT3 receptor antagonist (serotonin antagonist)
- Chemical class
- Carbazoles
- Action class
- Serotonin 5-HT3 Receptor Antagonists
- Habit forming
- No
- Variants
- syrup 30 Ml
- Delivery
- Standard across India
References
Compiled from the manufacturer's prescribing information and the sources below, and reviewed by a registered pharmacist. It does not replace your own doctor's advice.
- Manufacturer labeling/SmPC
- CDSCO/Schedule H guidelines, established medical literature (5-HT3 antagonists), standard drug references
- Central Drugs Standard Control Organisation (CDSCO), Ministry of Health & Family Welfare, Government of India, approved drug and schedule listings.
- National List of Essential Medicines (NLEM) 2022, Government of India.
- Manufacturer's package insert / prescribing information for Ondem Syrup.
- World Health Organization, ATC/DDD classification and Model Formulary for the active ingredient.
Next steps
Safety disclaimer
Product information is for general awareness and does not replace professional medical advice. Always follow a clinician's guidance and upload a valid prescription when required.