Megamentin Duo Oral Suspension is an antibiotic that helps your body fight infections caused by bacteria. It treats infections of the lungs (e.g., pneumonia), the ear, the nasal sinus, the urinary tract, the skin, and the soft tissue. It will not work for viral infections such as the common cold.
Megamentin Duo Oral Suspension is best taken with a meal to reduce the chance of a stomach upset. You should take it regularly at evenly spaced intervals as per the schedule prescribed by your doctor. Taking it at the same time every day will help you to remember to take it. The dose will depend on what you are being treated for, but you should always complete a full course of this antibiotic as prescribed by your doctor. Do not stop taking it until you have finished, even when you feel better. If you stop taking it early, some bacteria may survive and the infection may come back or worsen.
The most common side effects of this medicine include vomiting, nausea, and diarrhea. These are usually mild but let your doctor know if they bother you or will not go away.
Before taking it, let your doctor know if you are allergic to any antibiotics or have any kidney or liver problems. You should also let your healthcare team know about all other medicines you are taking as they may affect, or be affected by, this medicine. This medicine is generally regarded as safe to use during pregnancy and breastfeeding if prescribed by a doctor.
Uses of Megamentin Duo Oral Suspension in children
Benefits of Megamentin Duo Oral Suspension for your child
In Treatment of Bacterial infections
Bacterial infections can affect different parts of the body, such as the ear, sinus, throat, lungs, urinary tract, skin, teeth, joints, and bones. Megamentin Duo Oral Suspension is an antibiotic that works by killing the bacteria causing the infection. This helps relieve symptoms, clear the infection, and prevent it from spreading or worsening. Complete the full prescribed course to ensure effective treatment and reduce the risk of resistance.
Side effects of Megamentin Duo Oral Suspension in children
Megamentin Duo Oral Suspension does not pose serious side effects and is well-tolerated by children. In case the side effects do occur, they’re likely to subside once the body adapts to the medicine. Consult your child’s doctor if these side effects persist or bother your child. The most common side effects include-
Common side effects of Megamentin
Mucocutaneous candidiasis
Nausea
Vomiting
Diarrhea
How can I give Megamentin Duo Oral Suspension to my child?
Take this medicine in the dose and duration as advised by your doctor. Check the label for directions before use. Measure it with a measuring cup and take it by mouth. Shake well before use. Megamentin Duo Oral Suspension should be taken with or after food.
How Megamentin Oral Suspension works
Megamentin Duo Oral Suspension is a combination of two medicines: Amoxycillin and Clavulanic Acid. Amoxycillin is an antibiotic. It works by preventing the formation of the bacterial protective covering, which is essential for the survival of bacteria. Clavulanic Acid is a beta-lactamase inhibitor that reduces resistance and enhances the activity of Amoxycillin against bacteria.
Safety advice
Kidney
CAUTION
Megamentin Duo Oral Suspension should be used with caution in patients with kidney disease. Dose adjustment may be needed. Use of this medicine is not recommended in patients with severe kidney disease.
Liver
CAUTION
Megamentin Duo Oral Suspension should be used with caution in patients with liver disease. Dose adjustment may be needed. Regular monitoring of liver function tests is recommended while you are taking this medicine
What if I forget to give Megamentin Duo Oral Suspension to my child?
If you miss a dose of Megamentin Duo Oral Suspension, take it as soon as possible. However, if it is almost time for your next dose, skip the missed dose and return to your regular schedule. Do not double the dose.
All substitutes
For informational purposes only. Consult a doctor before taking any medicines.
Take Megamentin Duo Oral Suspension, preferably with food, to avoid stomach upset.
Stick to simple meals, avoid fatty or spicy food, and drink plenty of water while taking this medicine.
Diarrhea may occur as a side effect. Taking probiotics along with this medicine may help.
Seek medical advice if diarrhea becomes severe or persistent, or if you notice bloody stools or develop abdominal cramps.
Stop taking Megamentin Duo Oral Suspension and seek urgent medical attention if you develop a rash, itching, swelling of the face or throat, or difficulty breathing.
Do not use leftover medicine to treat any future infection. Always consult your doctor before taking any antibiotic.
Inform your doctor if you have kidney or liver disease before taking Megamentin Duo Oral Suspension.
Complete the full course of treatment and do not stop it early, even if you start feeling better.
Fact Box
Habit Forming
No
Therapeutic Class
ANTI INFECTIVES
FAQs
What is Megamentin Duo Oral Suspension, and what is it used for?
Megamentin Duo Oral Suspension is an oral antibacterial combination of amoxicillin and clavulanic acid. It is used to treat a wide range of bacterial infections. It is commonly prescribed to treat infections such as ear infections (otitis media), sinus infections (bacterial rhinosinusitis), respiratory infections (pneumonia, bronchitis), and skin and soft tissue infections (cellulitis, abscesses).
Is Megamentin Duo Oral Suspension safe for patients with a history of penicillin allergy?
Since Megamentin Duo Oral Suspension is a penicillin-type antibiotic, individuals with a known penicillin allergy may be at higher risk of an allergic reaction. Patients who are allergic to penicillin or who have had a previous allergic reaction to Megamentin Duo Oral Suspension should not use it.
Can I take Megamentin Duo Oral Suspension if I have a known liver condition or a history of jaundice?
Megamentin Duo Oral Suspension should be used with caution in patients with liver disease or a history of jaundice. Dose adjustment may be needed. Your doctor will decide whether to prescribe this medicine after evaluating your condition, often with liver function tests. Always take it only after consulting your doctor.
Does Megamentin Duo Oral Suspension affect the efficacy of oral contraceptive (birth control) pills?
As per the most recent evidence, Megamentin Duo Oral Suspension does not interfere with hormonal birth control. However, talk to your doctor if you have any concerns. They can help you feel confident and protected. Antibiotics such as Megamentin Duo Oral Suspension can cause nausea, vomiting, and diarrhea. If you vomit within two hours of taking the birth control pills, or if you have had diarrhea for 24 hours or more, your birth control pills may be ineffective. You may need to use an additional barrier method (such as condoms) in such cases.
Can I stop taking Megamentin Duo Oral Suspension early if my symptoms disappear?
No. It is very important to complete the full course of treatment, even if you start feeling better before finishing it. Feeling better does not necessarily mean that all the bacteria causing your infection have been eliminated. Stopping antibiotic treatment early may cause the symptoms to recur or make the bacteria resistant to the antibiotic.
Does Megamentin Duo Oral Suspension cause loose motions or diarrhea?
Yes, diarrhea or loose motions is amongst the most commonly reported side effects of Megamentin Duo Oral Suspension. In most cases, this is mild and resolves once the antibiotic course is complete. If you develop severe diarrhea, bloody stools, or abdominal cramping, or if symptoms persist or worsen, inform your doctor immediately.
Is Megamentin Duo Oral Suspension effective against viral infections, such as the common cold or flu?
No. Megamentin Duo Oral Suspension is an antibiotic and works only against bacterial infections. Viruses cause the common cold and influenza (flu). Antibiotics are not effective against them. If you have a cold or flu, supportive care such as rest, staying hydrated, and using home remedies like saline gargles or steam inhalation may help with recovery.
How long does Megamentin Duo Oral Suspension take to work, and how do I know if it is working?
Megamentin Duo Oral Suspension begins to work against bacterial infections within hours of taking it. However, it may take 24 to 48 hours to notice improvement in your symptoms. If you do not notice any improvement, or if your symptoms worsen at any point, contact your doctor. This may indicate that the bacteria causing the infection are resistant to this antibiotic or that a different treatment is needed.
Is Megamentin Duo Oral Suspension safe for elderly patients with reduced kidney function?
Special care is needed when Megamentin Duo Oral Suspension is given to older adults, particularly those with reduced kidney function (renal impairment). The kidneys primarily clear Megamentin Duo Oral Suspension from the body, so if they are not functioning well, the drug can build up in the body and increase the risk of side effects. Dose adjustment may be required based on kidney function.
What kind of infection does Megamentin Duo Oral Suspension fight?
Megamentin Duo Oral Suspension fights infections caused by bacteria, specifically those that produce enzymes called beta-lactamases. These enzymes are a common mechanism by which bacteria defend themselves against antibiotics. Clavulanic acid blocks these enzymes, allowing amoxicillin to kill the bacteria effectively. This medicine is active against a broad range of bacteria, including both gram-positive and gram-negative types. Common bacteria it targets include Streptococcus pneumoniae (a cause of pneumonia and ear infections), Haemophilus influenzae (associated with respiratory and ear infections), and Moraxella catarrhalis (common in sinus and chest infections).
Tata 1mg's sole intention is to ensure that its consumers get information that is expert-reviewed, accurate and trustworthy. However, the information contained herein should NOT be used as a substitute for the advice of a qualified physician. The information provided here is for informational purposes only. This may not cover everything about particular health conditions, lab tests, medicines, all possible side effects, drug interactions, warnings, alerts, etc. Please consult your doctor and discuss all your queries related to any disease or medicine. We intend to support, not replace, the doctor-patient relationship.
References
Amoxicillin/clavulanate potassium. Research Triangle Park, North Carolina: GlaxoSmithKline. [Accessed 25 Jan. 2019] (online) Available from:
Amoxicillin and clavulanic acid. Mayenne, France: Glaxo Wellcome Production; 2017. [Accessed 01 Feb. 2019] (online) Available from:
Amoxicillin trihydrate and potassium clavulanate [EMC SmPC]. London, UK: GlaxoSmithKline UK; 2025. [Accessed 02 Jul. 2025] (online) Available from:
Marketer details
Name: Intas Pharmaceuticals Ltd
Address: Matoda-382210 ,Dist.Ahmedabad ,India
Country of origin: India Expires on or after: June, 2026
A licensed vendor partner from your nearest location will deliver Megamentin Duo Oral Suspension. Once the pharmacy accepts your order, the details of the pharmacy will be shared with you. Acceptance of your order is based on the validity of your doctor's ℞ and the availability of this medicine.
In case of any issues, contact us
Email ID:[email protected] Phone Number: 0124-4166666 Address: 5th Floor Tower - B of the Presidency Building, 46/4 Mehrauli Gurgaon Road, Sector 14, Gurugram, Haryana-122001, India
The price displayed is the MRP (inclusive of applicable taxes). Any additional fee (such as shipping fee, handling and/or platform fee etc.) will be clearly disclosed before you complete your purchase.