bentodex eye/ear drops - Neomycin (0.5% w/v) + Dexamethasone (0.14% w/v) medicine

Bentodex Eye/Ear Drops: Comprehensive Guide to Uses, Side Effects, and Safety

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🏭 Calibre Pharmaceutical 📦 Varies by brand 💊 Allopathy 📅 Updated: Oct 18, 2026
📋 Prescription Required 💊 Generic Available
Medically Reviewed
11 min read
Evidence: Well-established for approved indications.
Reviewed by
SaathiMed Expert Panel | Oct 18, 2026
🩺
Medically Fact-Checked & Clinically Verified by SaathiMed Clinical Review Board
Clinical Reference Standards: CDSCO (Central Drugs Standard Control Organisation), Indian Pharmacopoeia (IP) & WHO | Last Updated: September 2026

When to Call Your Doctor IMMEDIATELY

  • Sudden decrease in vision or blurred vision that persists.
  • Severe eye pain or headache.
  • Swelling of the face, lips, or throat, or difficulty breathing.
  • New or worsening ear pain, hearing loss, or ringing in the ears.
  • Signs of a secondary infection, such as increased redness, discharge, or swelling.
  • Rash, itching, or hives.
  • Yellowing of the skin or eyes.

If experiencing severe symptoms, call emergency services immediately.

What is bentodex eye/ear drops used for?

This medicine is a combination antibiotic and steroid eye/ear drop used to treat bacterial infections with inflammation. It contains neomycin, which kills bacteria, and dexamethasone, which reduces swelling and redness. It is typically used for conditions like bacterial conjunctivitis and swimmer's ear, but should not be used in viral or fungal infections or if the eardrum is perforated.

  • Generic Name: Neomycin + Dexamethasone
  • Manufacturer: Calibre Pharmaceutical
  • Form: Allopathy
  • Pregnancy Category: Consult doctor
  • Prescription Required: Yes

🇮🇳 bentodex eye/ear drops के बारे में (Hindi Summary)

उपयोग: यह दवा आंख और कान के बैक्टीरियल संक्रमण के इलाज के लिए इस्तेमाल की जाती है, जिसमें सूजन भी होती है। इसमें नियोमाइसिन नामक एंटीबायोटिक और डेक्सामेथासोन नामक स्टेरॉयड होता है। नियोमाइसिन बैक्टीरिया को मारता है और डेक्सामेथासोन सूजन, लालिमा और दर्द को कम करता है। इसका उपयोग आमतौर पर बैक्टीरियल कंजंक्टिवाइटिस (आंख आना), ब्लेफेराइटिस (पलक की सूजन), और ओटिटिस एक्सटर्ना (कान का बाहरी संक्रमण) के लिए किया जाता है। यह दवा केवल डॉक्टर के पर्चे पर मिलती है और सीमित समय के लिए उपयोग की जानी चाहिए।

साइड इफेक्ट्स: आम दुष्प्रभावों में आंख या कान में जलन, खुजली, या अस्थायी धुंधली दृष्टि शामिल हो सकते हैं। कभी-कभी एलर्जी प्रतिक्रिया हो सकती है। लंबे समय तक उपयोग से फंगल संक्रमण, आंखों में दबाव बढ़ना, या मोतियाबिंद हो सकता है। गंभीर दुष्प्रभाव दुर्लभ हैं, लेकिन यदि सांस लेने में कठिनाई, चेहरे या गले में सूजन, या तेज दर्द हो तो तुरंत डॉक्टर से मिलें।

सुरक्षा सलाह: इस दवा का उपयोग केवल डॉक्टर के निर्देशानुसार करें। निर्धारित अवधि से अधिक समय तक इसका उपयोग न करें। उपयोग से पहले और बाद में हाथ धोएं। ड्रॉपर की नोक को आंख, कान या किसी सतह से न छुएं। यदि आप कॉन्टैक्ट लेंस पहनते हैं, तो दवा डालने से पहले उन्हें निकाल लें और 15 मिनट बाद ही वापस पहनें। यदि आप गर्भवती हैं या स्तनपान करा रही हैं, तो डॉक्टर को बताएं। बच्चों की पहुंच से दूर रखें।

💡 Did You Know? Over 80% of the antiretroviral drugs used globally to combat AIDS are supplied by Indian pharmaceutical companies.

💊 bentodex eye/ear drops Uses & Benefits

[{"condition":"Bacterial conjunctivitis","description":"Used to treat bacterial eye infections that cause redness, discharge, and irritation, especially when inflammation is prominent.","evidence":"Well-established"},{"condition":"Blepharitis","description":"Helps reduce eyelid inflammation and bacterial infection of the eyelid margins.","evidence":"Well-established"},{"condition":"Otitis externa","description":"Used for bacterial infections of the outer ear canal, often called swimmer's ear, when inflammation is significant.","evidence":"Well-established"},{"condition":"Post-operative eye inflammation","description":"May be prescribed after eye surgery to prevent infection and reduce inflammation.","evidence":"Established"}]

Off-label uses: [{"condition":"Allergic conjunctivitis with suspected secondary bacterial infection","description":"Sometimes used when allergic inflammation is complicated by bacterial infection, though primary treatment is antihistamines.","evidence":"Limited"}]

Primary treatment for: Bacterial eye and ear infections with inflammation

Also treats: Bacterial conjunctivitis, Blepharitis, Otitis externa

📋 Drug Information

Generic Name(s)Neomycin + Dexamethasone
Brand NameBentodex Eye/Ear Drops
ManufacturerCalibre Pharmaceutical
Packaging / FormVaries by brand (Allopathy)
Therapeutic ClassOPHTHAL OTOLOGICALS
Action ClassAntibiotic + Corticosteroid
Route of AdministrationTopical (ophthalmic and otic). For external use only. Apply to the affected eye or ear as directed by your doctor
StorageStore at room temperature (15-30°C). Protect from light and moisture. Keep the container tightly closed when not in use. Do not freeze.
Shelf Life24 months from the date of manufacture, unless otherwise specified on the packaging.
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
Always wash your hands before and after applying this medicine to prevent contamination.
2
Do not touch the dropper tip to your eye, ear, or any surface, as this can introduce bacteria.
3
Use this medicine for the full prescribed duration, even if symptoms improve, to prevent recurrence.
4
If you wear contact lenses, remove them before application and wait at least 15 minutes before reinserting.
5
Do not use this medicine for longer than 7 days without consulting your doctor, as prolonged use can cause secondary infections or increased eye pressure.
6
If you experience any vision changes, eye pain, or hearing problems, stop using the medicine and consult your doctor immediately.

🔍 Is This Medicine Right for Your Symptom?

Educational reference. Always consult a doctor for diagnosis.

✅
Red, itchy eyes with discharge
This medicine is commonly prescribed for bacterial conjunctivitis.
Likely Use
✅
Ear pain and itching
This medicine is used for otitis externa (swimmer's ear).
Likely Use
❌
Blurred vision
This medicine is not a primary treatment for blurred vision; consult an eye specialist.
Not Primary
❌
Fever
This medicine is not a fever reducer.
Not Primary

🔬 How This Medicine Works (Pharmacology)

Pharmacokinetics

AbsorptionNeomycin and dexamethasone are absorbed locally through the cornea or ear canal mucosa. Systemic absorption is minimal when used as directed, but may occur if there is mucosal damage or prolonged use.
DistributionAfter local application, both drugs distribute into the eye or ear tissues. Dexamethasone is highly protein-bound and distributes into various tissues. Neomycin distributes mainly extracellularly.
Protein BindingDexamethasone is approximately 77% bound to plasma proteins, primarily albumin. Neomycin binding to plasma proteins is not established from the available information.
MetabolismDexamethasone is metabolized in the liver, primarily by CYP3A4, to inactive metabolites. Neomycin is not metabolized and is excreted unchanged.
Half-LifeThe elimination half-life of dexamethasone is approximately 3 to 4 hours. The elimination half-life of neomycin is not established from the available information.
ExcretionDexamethasone metabolites are excreted mainly in urine. Neomycin is excreted unchanged in urine by glomerular filtration.
BioavailabilitySystemic bioavailability following topical ocular or otic administration is very low, typically less than 5% for dexamethasone and negligible for neomycin.
Onset of ActionAnti-inflammatory effects of dexamethasone may begin within hours; antibacterial effects of neomycin start as the drug reaches therapeutic concentrations at the site of infection.
Peak Plasma TimePeak plasma concentrations after topical administration are generally very low and not well established from the available information.
Duration of ActionThe anti-inflammatory effect of dexamethasone lasts for several hours after application. The antibacterial effect of neomycin persists as long as adequate concentrations are maintained at the site.

How It Works

This medicine combines two active ingredients. Neomycin is an aminoglycoside antibiotic that binds to the 30S ribosomal subunit of susceptible bacteria, causing misreading of messenger RNA and inhibiting protein synthesis, which leads to bacterial cell death. Dexamethasone is a synthetic glucocorticoid that binds to glucocorticoid receptors in the cytoplasm, then translocates to the nucleus where it modifies gene transcription. This results in reduced production of inflammatory mediators such as prostaglandins and leukotrienes, suppression of immune cell migration, and stabilization of lysosomal membranes, thereby decreasing inflammation.

Mechanism Steps

1
Neomycin binds to bacterial ribosome: Neomycin attaches to the 30S ribosomal subunit of susceptible bacteria, disrupting the initiation complex and causing misreading of mRNA.
2
Inhibition of protein synthesis: This binding prevents the bacteria from synthesizing essential proteins, leading to bacterial death.
3
Dexamethasone enters cells: Dexamethasone, being lipophilic, diffuses through cell membranes and binds to cytoplasmic glucocorticoid receptors.
4
Receptor translocation and gene modulation: The drug-receptor complex moves into the nucleus and alters transcription of genes involved in inflammation, reducing pro-inflammatory proteins and increasing anti-inflammatory proteins.
5
Reduction of inflammation: This leads to decreased production of inflammatory mediators, reduced immune cell activity, and less swelling, redness, and pain.

💡 How to Take bentodex eye/ear drops

Strength: Neomycin 0.5% w/v + Dexamethasone 0.14% w/v eye/ear drops.

1Wash your hands thoroughly with soap and water.
2For eye drops: Tilt your head back, pull down the lower eyelid to form a pouch, and squeeze one drop into the pouch. Close your eye gently for 1-2 minutes. Do not blink or rub your eye.
3For ear drops: Lie on your side with the affected ear facing up. Pull the earlobe gently upward and backward to straighten the ear canal. Instill the prescribed number of drops. Stay in this position for 2-3 minutes.
4Avoid touching the dropper tip to your eye, ear, or any surface.
5Replace the cap tightly after use.
6Wash your hands again after application.

Dosage Information

Adult DosageThe dosage is individualized by a qualified clinician based on the indication, severity of infection, and patient response. Typically, for eye infections, 1 to 2 drops are instilled into the affected eye every 4 to 6 hours. For ear infections, 2 to 3 drops are instilled into the affected ear 2 to 3 times daily. Duration of therapy should be as prescribed, usually not exceeding 7 days without medical review. 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 specific dosage adjustments are established for elderly patients. Use with caution and monitor for side effects. Dose must be individualized by a qualified clinician.
Renal ImpairmentNo specific dosage adjustments are established for renal impairment. Use with caution due to potential nephrotoxicity of neomycin if systemically absorbed. Consult your doctor.
Hepatic ImpairmentNo specific dosage adjustments are established for hepatic impairment. Consult your doctor.
Maximum Daily DoseNot established from the available information. Use as prescribed by your doctor.

Dosage Timeline

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

⏰ What to Do If You Miss a Dose

📌 Less than half the dosing interval has passed
→ Take the missed dose as soon as you remember.
💡 Continue with the regular schedule.
📌 More than half the dosing interval has passed
→ Skip the missed dose.
💡 Do not double dose to catch up.

⚠️ Side Effects of bentodex eye/ear drops

✅ Common Side Effects

Temporary stinging or burning (Common (5-10%))
Usually resolves within minutes. If persistent or severe, consult your doctor.
Eye irritation or redness (Common (5-10%))
May decrease with continued use. If it worsens, stop and consult your doctor.
Blurred vision (Uncommon (1-5%))
Avoid driving or operating machinery until vision clears. If persistent, consult your doctor.
Ear discomfort (Uncommon (1-5%))
Usually temporary. If severe or persistent, consult your doctor.

🚨 Serious Side Effects

Severe allergic reaction (anaphylaxis) (Rare (<0.1%))
Seek immediate medical attention if you experience swelling of face, lips, throat, difficulty breathing, or rash.
Secondary fungal or viral infection (Rare (<0.1%))
Consult your doctor if you notice new or worsening symptoms such as increased redness, pain, or discharge.
Increased intraocular pressure or glaucoma (Rare (<0.1%))
Prolonged use may cause increased eye pressure. Regular eye check-ups are advised if used for more than 10 days.
Cataract formation (Rare (<0.1%))
Long-term use may lead to cataracts. Consult an ophthalmologist if you notice vision changes.

⚠️ Rare Side Effects

Delayed wound healing
Inform your doctor if you have a wound that is not healing.
Systemic corticosteroid effects
With prolonged use or large doses, systemic effects like adrenal suppression may occur. Consult your doctor.

Consult your doctor if you experience any unusual symptoms.

🔬 Drug Interactions

Drug Severity Effect
Gentamicin Major
Furosemide Major
Ketoconazole Moderate
Rifampin Moderate
Warfarin Moderate
NSAIDs Minor

🚨 Major Interactions

  • Other aminoglycosides (e.g., gentamicin, tobramycin)
  • Loop diuretics (e.g., furosemide)

⚡ Moderate Interactions

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

🍷 Alcohol Interaction

No known direct interaction with alcohol when used topically. However, alcohol may worsen underlying conditions or interact with other medications. Consult your doctor.

🔎 Check Your Other Medicines

Educational tool. Always confirm with your doctor or pharmacist.

🛡️ Safety & Warnings

🚫 Contraindications

["Hypersensitivity to neomycin, dexamethasone, or any component of the formulation.","Viral, fungal, or mycobacterial infections of the eye or ear.","Perforated eardrum.","Use in the eye after uncomplicated removal of a corneal foreign body."]

⚠️ Warnings & Precautions

["Prolonged use may result in overgrowth of non-susceptible organisms, including fungi.","Do not use in the eye if there is a suspected fungal infection.","Contact lens wearers should remove lenses before application and wait 15 minutes before reinsertion.","Use with caution in patients with glaucoma; monitor intraocular pressure.","Avoid touching the dropper tip to any surface to prevent contamination.","Do not use for longer than prescribed without medical advice."]

🤱 Lactation Safety

It is not known whether this medicine is excreted in human milk. Caution should be exercised when used by a nursing mother. Consult your doctor.

💊 Overdose Management

Overdose is unlikely with topical use. If accidental ingestion occurs, seek medical attention. Symptoms of overdose may include systemic corticosteroid effects or aminoglycoside toxicity. Treatment is symptomatic and supportive.

⏰ Missed Dose

If you miss a dose, apply it as soon as you remember. If it is almost time for your next dose, skip the missed dose and continue with your regular schedule. Do not double the dose.

Additional Safety Advice

General Safety

Use this medicine only as prescribed by your doctor. Do not use it for longer than the recommended duration, as prolonged use can lead to secondary infections or other complications. Wash your hands before and after applying the drops. Avoid touching the dropper tip to your eye, ear, or any surface to prevent contamination. If you wear contact lenses, remove them before applying the drops and wait at least 15 minutes before reinserting them. Do not use this medicine if you have a perforated eardrum or a viral, fungal, or mycobacterial eye infection. Inform your doctor if you are pregnant, planning to become pregnant, or breastfeeding. Do not share this medicine with others. Keep out of reach of children.

👴 Special Considerations for Elderly

💡 For Patients Above 65

Elderly patients may be more susceptible to the side effects of corticosteroids, such as increased intraocular pressure and cataract formation. Use with caution and monitor regularly. Renal function should be considered due to the neomycin component.

🤰 Pregnancy Planning (TTC)

If you are planning to become pregnant, consult your doctor before using this medicine. There is no established data on the safety of this medicine in pregnancy. Use only if clearly needed and prescribed by your doctor.

🏥 Post-Surgery Considerations

This medicine may be prescribed after eye surgery to prevent infection and reduce inflammation. Use exactly as directed by your surgeon. Do not stop using it without consulting your surgeon.

🦷 Dental Procedures

No specific considerations for dental procedures. However, inform your dentist about all medications you are using.

💚 Lifestyle Tips for Better Results

🏃
Maintain good hand hygiene to prevent spreading infections.
🥗
Avoid touching or rubbing your eyes or ears with unclean hands.
😴
Keep your ears dry, especially after swimming or bathing.
💧
Follow a healthy diet rich in vitamins A, C, and E to support immune function.
🧘
Get adequate rest to help your body fight infections.
🌞
Avoid sharing towels, pillows, or eye makeup during an active infection.

🏋️ Exercise Considerations

No specific exercise restrictions are required while using this medicine. However, if you experience blurred vision after applying eye drops, avoid activities that require clear vision, such as swimming or contact sports, until vision clears. For ear drops, avoid swimming or water sports until the infection resolves.

🥗 Diet Recommendations

Include foods rich in vitamin A, such as carrots and spinach, to support eye health.
Stay well hydrated to help maintain healthy mucous membranes.
Limit sugary and processed foods that can weaken immune response.
Include probiotic-rich foods like yogurt to support overall immunity.

💼 Impact on Daily Work & Life

This medicine may cause temporary blurred vision after application, especially eye drops. Avoid driving or operating heavy machinery until your vision is clear. For ear drops, you may need to lie down for a few minutes after application, which could affect work if done during office hours. Otherwise, it does not significantly impact daily activities.

🛑 When to Stop This Medicine

Stop using this medicine and consult your doctor if your symptoms worsen or do not improve within 3-5 days, if you experience any serious side effects, or if you develop signs of an allergic reaction. Do not stop abruptly without consulting your doctor if you have been using it for more than 10 days, as tapering may be needed.

📅 Long-Term Use Effects

Long-term use of this medicine can lead to secondary infections, increased intraocular pressure (which may lead to glaucoma), and cataract formation. Prolonged use may also cause systemic absorption of neomycin, potentially leading to nephrotoxicity or ototoxicity. Regular monitoring by an ophthalmologist is recommended if used for more than 10 days. Do not use for extended periods without medical supervision.

🌿 Non-Medicine Approaches

These can complement medicine but do not replace prescribed treatment.

Warm compresses

Applying a warm compress to the affected eye or ear can help reduce discomfort and promote drainage.

Evidence: Well-established for supportive care
Saline nasal spray

For ear infections, keeping the nasal passages clear can help with Eustachian tube function.

Evidence: Limited

💉 Vaccination Considerations

💉 If You're Getting Vaccinated

No known interactions with vaccines. However, if you are scheduled for vaccination, inform your doctor about this medicine. Live vaccines should be avoided if you are on high-dose systemic corticosteroids, but topical use is unlikely to affect vaccine safety.

📦 Storage Guide

✅ DO

Store at room temperature (15-30°C)

❌ DON'T

Do not refrigerate unless specified

✅ DO

Keep in original container

❌ DON'T

Do not transfer to unmarked containers

✅ DO

Keep away from direct sunlight

❌ DON'T

Do not store in bathroom cabinet

✅ DO

Keep the cap tightly closed when not in use

❌ DON'T

Do not use after the expiry date

✈️ Traveling with This Medicine

When traveling with this medicine, carry it in its original packaging along with a copy of your prescription. Keep it in your carry-on luggage to avoid extreme temperatures in checked baggage. Store at room temperature and protect from light. If traveling across time zones, continue your regular dosing schedule as prescribed; no specific time zone adjustments are needed for topical use. Check customs regulations for carrying prescription medications in your destination country.

💰 Cost Analysis & Savings

👥 Real Patient Stories

Educational, anonymized scenarios. Individual results may vary.

👤 A 35-year-old woman with bacterial conjunctivitis
She was prescribed this medicine for redness and discharge in her right eye. She used it as directed, 1 drop every 6 hours. Within 2 days, the redness and discharge significantly reduced. She completed the 7-day course and the infection cleared completely. She noted that washing hands before and after application was key to preventing reinfection.
💡 Lesson: Consistent use and good hygiene practices lead to effective resolution of bacterial eye infections.
👤 A 50-year-old man with swimmer's ear
He developed pain and itching in his left ear after swimming. His doctor prescribed this medicine as ear drops, 3 drops twice daily. He applied the drops while lying on his side and stayed in that position for 3 minutes. After 5 days, his symptoms resolved. He was advised to keep his ears dry and avoid swimming during treatment.
💡 Lesson: Proper application technique and keeping the ear dry are essential for treating otitis externa effectively.

💬 Questions Patients Often Ask

Q: How long does it take to work?

A: You may start to feel relief within 1-2 days, but it is important to complete the full course as prescribed. If symptoms do not improve within 3-5 days, consult your doctor.

Q: Can I use this medicine for pink eye?

A: This medicine is effective for bacterial conjunctivitis (pink eye caused by bacteria). However, it is not effective for viral or allergic conjunctivitis. Consult your doctor for proper diagnosis.

Q: Is it safe to use this medicine for a perforated eardrum?

A: No, this medicine is contraindicated if you have a perforated eardrum because the neomycin component can cause hearing damage.

Q: Can I wear contact lenses while using this medicine?

A: Remove contact lenses before applying the drops and wait at least 15 minutes before reinserting them. The preservative in the drops may be absorbed by soft contact lenses.

🤔 Common Patient Concerns

💭 These are the concerns patients most commonly raise

  • Can I use this medicine for a stye?
  • Is it safe to use this medicine while pregnant?
  • Can I use this medicine if I have glaucoma?
  • How long does it take to work?
  • What should I do if I miss a dose?
  • Can I use this medicine for my child's ear infection?

🛑 Myths vs. Facts

  • Myth: This medicine can be used for any eye or ear infection.
    Fact: This medicine is only effective against bacterial infections and should not be used for viral or fungal infections.
  • Myth: It is safe to use this medicine for a long time.
    Fact: Prolonged use can lead to secondary infections, increased eye pressure, and cataracts. Use only as prescribed.
  • Myth: This medicine can be used for a perforated eardrum.
    Fact: It is contraindicated in patients with a perforated eardrum due to the risk of ototoxicity from neomycin.

🔄 Alternative Options

Generic Alternatives

  • Neomycin + Dexamethasone eye/ear drops (generic)

Brand Alternatives

  • Bentodex eye/ear drops

📊 Comparison with Similar Medicines

[{"medicine":"This medicine","active_ingredients":"Neomycin + Dexamethasone","class":"Aminoglycoside + Corticosteroid","primary_use":"Bacterial eye/ear infections with inflammation","route":"Topical (ophthalmic/otic)"},{"medicine":"Tobramycin + Dexamethasone","active_ingredients":"Tobramycin + Dexamethasone","class":"Aminoglycoside + Corticosteroid","primary_use":"Bacterial eye infections with inflammation","route":"Ophthalmic"},{"medicine":"Gentamicin + Betamethasone","active_ingredients":"Gentamicin + Betamethasone","class":"Aminoglycoside + Corticosteroid","primary_use":"Bacterial eye/ear infections with inflammation","route":"Topical (ophthalmic/otic)"}]

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