audotic ear drop - Lidocaine (2% w/v) + Clotrimazole (1% w/v) medicine

Clotrin-AC Ear Drop: Complete Guide to Uses, Dosage, and Safety

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🏭 Kaizen Pharmaceuticals Pvt Ltd 📦 Varies by brand 💊 Allopathy 📅 Updated: Sep 23, 2026
📋 Prescription Required 💊 Generic Available
Medically Reviewed
11 min read
Evidence: Moderate for otomycosis; limited for other uses.
Reviewed by
SaathiMed Expert Panel | Sep 23, 2026

When to Call Your Doctor IMMEDIATELY

  • Severe allergic reaction (rash, swelling, difficulty breathing)
  • Worsening of ear pain or discharge
  • New onset of hearing loss
  • Dizziness or vertigo
  • Fever with ear pain
  • Swelling or redness spreading around the ear

If experiencing severe symptoms, call emergency services immediately.

What is audotic ear drop used for?

This medicine is a combination ear drop containing lidocaine (a numbing agent) and clotrimazole (an antifungal). It is used to treat fungal ear infections and relieve associated pain and itching. It works by numbing the ear and killing the fungus.

  • Generic Name: Lidocaine + Clotrimazole
  • Manufacturer: Kaizen Pharmaceuticals Pvt Ltd
  • Form: Allopathy
  • Pregnancy Category: Consult doctor
  • Prescription Required: Yes

🇮🇳 audotic ear drop के बारे में (Hindi Summary)

उपयोग: यह दवा कान की फंगल संक्रमण (ओटोमाइकोसिस) के इलाज के लिए इस्तेमाल की जाती है। इसमें लिडोकेन दर्द को कम करता है और क्लोट्रिमाजोल फंगस को मारता है। यह कान में खुजली, दर्द और सूजन को कम करने में मदद करती है।

साइड इफेक्ट्स: आम दुष्प्रभावों में कान में हल्की जलन, खुजली या चुभन शामिल है। गंभीर दुष्प्रभाव दुर्लभ हैं, लेकिन यदि आपको गंभीर एलर्जी, सूजन या सांस लेने में कठिनाई हो तो तुरंत डॉक्टर से संपर्क करें।

सुरक्षा सलाह: इस दवा का उपयोग केवल कान में डालने के लिए करें। ड्रॉपर की टिप को कान या किसी सतह को न छुएं। उपयोग से पहले बोतल को हाथों में गर्म करें। कान में डालने के बाद 2-3 मिनट तक करवट लेटे रहें। यदि कान का पर्दा फटा हो तो इसका उपयोग न करें। 7 दिनों से अधिक उपयोग न करें।

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

💊 audotic ear drop Uses & Benefits

[{"condition":"Otomycosis (fungal ear infection)","description":"Treats fungal infections of the outer ear canal caused by Aspergillus, Candida, and other fungi, while providing pain relief.","evidence":"Well-established"},{"condition":"Otitis externa with suspected fungal component","description":"Used when bacterial infection is not the primary cause, to cover fungal elements and reduce pain.","evidence":"Moderate"}]

Off-label uses: [{"condition":"Relief of ear pain due to non-infectious causes","description":"Sometimes used for temporary numbing of the ear canal for minor procedures or pain, but not a standard practice.","evidence":"Limited"}]

Primary treatment for: Otomycosis (fungal ear infection)

Also treats: Otitis externa, Ear pain due to fungal infection

📋 Drug Information

Generic Name(s)Lidocaine + Clotrimazole
Brand NameAudotic Ear Drop
ManufacturerKaizen Pharmaceuticals Pvt Ltd
Packaging / FormVaries by brand (Allopathy)
Therapeutic ClassOTOLOGICALS
Action ClassLocal anesthetic + Antifungal
Route of AdministrationTopical (otic) - applied into the affected ear canal
StorageStore at room temperature (15-30°C). Protect from light and moisture. Keep the bottle tightly closed when not in use.
Shelf Life24 months from the date of manufacture.
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 warm the ear drops by holding the bottle in your hand before use to avoid dizziness.
2
Do not touch the dropper tip to your ear or any surface to prevent contamination.
3
Lie on your side for 2-3 minutes after instilling the drops to ensure they reach the infection.
4
Complete the full course as prescribed, even if symptoms improve, to prevent recurrence.
5
Avoid getting water in your ear during treatment; use earplugs while bathing.
6
If you have a perforated eardrum, do not use this medicine without consulting your doctor.

🔍 Is This Medicine Right for Your Symptom?

Educational reference. Always consult a doctor for diagnosis.

Ear itching
This medicine is commonly prescribed for fungal ear infections causing itching.
Likely Use
Ear pain
Lidocaine provides pain relief.
Likely Use
Fever
This medicine is not a primary fever reducer.
Not Primary

🔬 How This Medicine Works (Pharmacology)

Pharmacokinetics

AbsorptionLidocaine can be absorbed through mucous membranes, but systemic absorption from intact ear canal skin is minimal. Clotrimazole is poorly absorbed through intact skin; systemic absorption is negligible when applied topically to the ear.
DistributionNot established from the available information.
Protein BindingLidocaine: approximately 65% bound to plasma proteins. Clotrimazole: Not established from the available information.
MetabolismLidocaine is metabolized in the liver by cytochrome P450 enzymes (CYP3A4, CYP1A2). Clotrimazole is metabolized in the liver, but details are not well established for topical use.
Half-LifeLidocaine: 1.5 to 2 hours. Clotrimazole: Not established from the available information.
ExcretionLidocaine metabolites are excreted mainly in urine. Clotrimazole: Not established from the available information.
BioavailabilityNot established from the available information for topical ear drop.
Onset of ActionLidocaine provides local anesthesia within 2-5 minutes. Clotrimazole starts working against fungi within hours, but noticeable improvement may take several days.
Peak Plasma TimeNot established from the available information.
Duration of ActionLidocaine anesthesia lasts about 30-60 minutes. Clotrimazole's antifungal effect persists with regular use.

How It Works

This medicine combines two active ingredients with distinct mechanisms. Lidocaine works by blocking voltage-gated sodium channels in nerve cell membranes, preventing the generation and conduction of nerve impulses, thereby producing local anesthesia. Clotrimazole works by inhibiting the synthesis of ergosterol, a vital component of fungal cell membranes. This leads to increased permeability and leakage of cellular contents, ultimately causing fungal cell death.

Mechanism Steps

1
Lidocaine blocks sodium channels: Lidocaine binds to voltage-gated sodium channels on nerve endings, preventing depolarization and blocking pain signals from the ear.
2
Clotrimazole inhibits ergosterol synthesis: Clotrimazole inhibits the fungal enzyme CYP51, disrupting the production of ergosterol, which is essential for fungal cell membrane integrity.
3
Fungal cell damage: Without ergosterol, the fungal cell membrane becomes leaky, leading to loss of essential cellular components and cell death.
4
Relief of symptoms: As the fungal infection is controlled and pain signals are blocked, symptoms such as itching, pain, and discharge improve.

💡 How to Take audotic ear drop

Strength: Ear drops containing Lidocaine 2% w/v and Clotrimazole 1% w/v.

1Wash your hands thoroughly before use.
2Warm the ear drop bottle by holding it in your hands for 1-2 minutes.
3Lie on your side with the affected ear facing up.
4Gently pull the outer ear upward and backward to straighten the ear canal.
5Instill the prescribed number of drops into the ear canal.
6Stay lying on your side for 2-3 minutes to allow the medicine to reach the infection.
7Replace the cap tightly and wash your hands again.

Dosage Information

Adult DosageThe usual adult dose is 2-3 drops instilled into the affected ear canal 2-3 times daily, or as directed by your doctor. The exact dose and duration depend on the severity of the infection and your response to treatment. 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 dose adjustment is required for elderly patients, but use with caution and under medical supervision.
Renal ImpairmentNo dose adjustment is required for renal impairment when used topically as directed.
Hepatic ImpairmentNo dose adjustment is required for hepatic impairment when used topically as directed.
Maximum Daily DoseNot established from the available information. Follow your doctor's prescription.

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 audotic ear drop

✅ Common Side Effects

Mild burning or stinging in the ear (Common (1-10%))
Usually resolves on its own. If persistent or severe, consult your doctor.
Ear irritation or itching (Common (1-10%))
May indicate sensitivity. Discontinue if it worsens and consult a doctor.

🚨 Serious Side Effects

Severe allergic reaction (anaphylaxis) (Rare (<0.1%))
Seek immediate medical attention if you experience rash, swelling, difficulty breathing, or dizziness.
Worsening of infection or new infection (Rare (<0.1%))
Consult your doctor if symptoms do not improve or worsen after a few days of use.

⚠️ Rare Side Effects

Systemic effects from lidocaine absorption (e.g., dizziness, drowsiness, seizures)
Seek immediate medical help if you experience confusion, tremors, or seizures.

Consult your doctor if you experience any unusual symptoms.

🔬 Drug Interactions

Drug Severity Effect
Other local anesthetics Major
Class I antiarrhythmics Major
CYP3A4 inhibitors Moderate
CYP3A4 inducers Moderate
Ototoxic drugs Minor

🚨 Major Interactions

  • Other local anesthetics (e.g., benzocaine, prilocaine)
  • Class I antiarrhythmics (e.g., tocainide, mexiletine)

⚡ Moderate Interactions

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

🍷 Alcohol Interaction

No known interaction with alcohol when used topically in the ear. However, alcohol may worsen underlying conditions or increase drowsiness if lidocaine is absorbed systemically. Avoid excessive alcohol consumption.

🔎 Check Your Other Medicines

Educational tool. Always confirm with your doctor or pharmacist.

🛡️ Safety & Warnings

🚫 Contraindications

["Perforated eardrum","Allergy to lidocaine, clotrimazole, or any component of the formulation","Untreated bacterial or viral ear infection","Children under 2 years of age"]

⚠️ Warnings & Precautions

["For external use only. Do not swallow.","Avoid contact with eyes.","Do not use if the ear canal is severely damaged or if you have a history of ear surgery without consulting a doctor.","If symptoms persist beyond 7 days, consult a doctor.","Keep out of reach of children."]

🤱 Lactation Safety

It is not known whether lidocaine or clotrimazole pass into breast milk after topical ear use. Consult your doctor before using this medicine while breastfeeding.

💊 Overdose Management

Overdose from topical ear drops is unlikely. If accidental ingestion occurs, seek medical attention immediately. Symptoms of lidocaine overdose may include dizziness, seizures, and irregular heartbeat.

⏰ 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 in the ear as prescribed. Do not touch the dropper tip to your ear or any surface to avoid contamination. Warm the drops by holding the bottle in your hand for a minute before use. Lie on your side with the affected ear up, instill the drops, and stay in that position for 2-3 minutes. Do not use this medicine if your eardrum is perforated or if you have a history of ear surgery without consulting your doctor. Avoid getting water in your ear during treatment. Do not use for more than 7 days unless directed by your doctor. Keep out of reach of children.

👴 Special Considerations for Elderly

💡 For Patients Above 65

Elderly patients may be more susceptible to ear infections and should use this medicine with caution. Monitor for any signs of systemic effects like dizziness.

🤰 Pregnancy Planning (TTC)

If you are planning pregnancy, consult your doctor before using this medicine. Topical use is generally considered safe, but medical advice is recommended.

🏥 Post-Surgery Considerations

Do not use this medicine after ear surgery without consulting your surgeon, as it may interfere with healing or mask complications.

🦷 Dental Procedures

No specific considerations for dental procedures. Inform your dentist about all medicines you are using.

💚 Lifestyle Tips for Better Results

🏃
Keep your ears dry and clean.
🥗
Avoid inserting cotton swabs or other objects into the ear canal.
😴
Manage underlying conditions like diabetes to prevent recurrent infections.
💧
Avoid swimming in contaminated water.
🧘
Use earplugs while showering or swimming if you are prone to ear infections.

🏋️ Exercise Considerations

No specific exercise restrictions. However, avoid swimming or water sports until the infection clears.

🥗 Diet Recommendations

Include immune-boosting foods like fruits and vegetables.
Reduce sugar intake as high sugar can promote fungal growth.
Stay well hydrated.

💼 Impact on Daily Work & Life

This medicine may cause mild dizziness if absorbed systemically. Avoid driving or operating heavy machinery if you feel dizzy. Otherwise, it does not significantly impact daily activities.

🛑 When to Stop This Medicine

Stop using this medicine after completing the prescribed course or if you experience a severe allergic reaction. Do not stop prematurely even if symptoms improve, as the infection may recur. Consult your doctor before stopping if you have concerns.

📅 Long-Term Use Effects

Long-term use of this medicine is not recommended without medical supervision. Prolonged use may lead to fungal resistance or mask other ear conditions. If symptoms persist beyond 7 days, consult a doctor for further evaluation.

🌿 Non-Medicine Approaches

These can complement medicine but do not replace prescribed treatment.

Keeping ears dry and clean

Prevents fungal growth and recurrence.

Evidence: Well-established
Antifungal ear drops without anesthetic

If pain is not a major issue, clotrimazole alone may be used.

Evidence: Well-established

💉 Vaccination Considerations

💉 If You're Getting Vaccinated

No known interaction with vaccines. Continue routine vaccinations as scheduled.

📦 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

✈️ Traveling with This Medicine

Carry this medicine in its original packaging with a copy of your prescription. Store at room temperature and protect from extreme heat or cold. If traveling across time zones, continue your regular dosing schedule. Declare it at customs if required. Keep it in your carry-on luggage to avoid loss.

💰 Cost Analysis & Savings

👥 Real Patient Stories

Educational, anonymized scenarios. Individual results may vary.

👤 A 35-year-old woman with persistent ear itching and mild pain
She was diagnosed with otomycosis and prescribed this medicine. After using it for 3 days, her itching reduced significantly, and the pain subsided. She completed the 7-day course and the infection cleared.
💡 Lesson: Consistent use and completing the full course are key to resolving fungal ear infections.
👤 A 50-year-old man with diabetes and recurrent ear infections
He used this medicine as prescribed but did not control his blood sugar. The infection improved temporarily but recurred. His doctor emphasized the importance of managing diabetes to prevent recurrence.
💡 Lesson: Underlying conditions like diabetes can predispose to fungal infections; managing them is crucial.

💬 Questions Patients Often Ask

Q: How long does it take to work?

A: Lidocaine provides pain relief within minutes. The antifungal effect starts working within hours, but noticeable improvement in infection may take 2-3 days.

Q: Can I use this medicine for bacterial ear infection?

A: No, this medicine is specifically for fungal infections. Using it for bacterial infections may delay appropriate treatment.

Q: Is it safe to use this medicine during pregnancy?

A: Consult your doctor before use. Topical ear drops are unlikely to cause harm, but medical advice is recommended.

🤔 Common Patient Concerns

💭 These are the concerns patients most commonly raise

  • Can I use this medicine for my child?
  • How long can I use this medicine?
  • What if I accidentally swallow this medicine?
  • Can I use this medicine with other ear drops?
  • Does this medicine affect my hearing?
  • Can I swim while using this medicine?

🔄 Substitutes for audotic ear drop

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 cure any ear infection.
    Fact: This medicine is specifically for fungal ear infections. It is not effective against bacterial or viral infections.
  • Myth: You can use this medicine for any ear pain.
    Fact: Ear pain can have many causes. This medicine should only be used for fungal infections as prescribed by a doctor.

🔄 Alternative Options

Generic Alternatives

  • Lidocaine + Clotrimazole ear drops (generic)

Brand Alternatives

  • Clotrin-AC ear drop

📊 Comparison with Similar Medicines

[{"medicine":"This medicine","active_ingredients":"Lidocaine + Clotrimazole","primary_use":"Fungal ear infection with pain","route":"Topical (otic)"},{"medicine":"Clotrimazole ear drops","active_ingredients":"Clotrimazole only","primary_use":"Fungal ear infection","route":"Topical (otic)"},{"medicine":"Lidocaine ear drops","active_ingredients":"Lidocaine only","primary_use":"Ear pain","route":"Topical (otic)"}]

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