aquanac eye drop - Carboxymethylcellulose (3mg/ml) + n-acetylcarnosine (10mg/ml) medicine

Aquanac Eye Drop: Comprehensive Guide to Uses, Side Effects, and Safety

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🏭 Raymed Pharmaceuticals Ltd 📦 Varies by brand 💊 Allopathy 📅 Updated: Sep 22, 2026
📋 Prescription Required 💊 Generic Available
Medically Reviewed
11 min read
Evidence: Carboxymethylcellulose: Well-established for dry eye. N-acetylcarnosine: Emerging evidence for cataract and dry eye.
Reviewed by
SaathiMed Expert Panel | Sep 22, 2026

When to Call Your Doctor IMMEDIATELY

  • Severe eye pain that does not go away
  • Sudden vision loss or persistent blurred vision
  • Severe redness or swelling of the eye
  • Discharge of pus or mucus from the eye
  • Signs of allergic reaction such as rash, itching, or swelling of face, lips, or throat
  • Eye injury or foreign body in the eye
  • Worsening of symptoms despite using the medicine

If experiencing severe symptoms, call emergency services immediately.

What is aquanac eye drop used for?

This medicine is an eye drop that combines carboxymethylcellulose and n-acetylcarnosine to lubricate the eye and protect against oxidative damage. It is used to relieve dry eye symptoms and may help maintain lens clarity.

  • Generic Name: Carboxymethylcellulose + N-Acetylcarnosine
  • Manufacturer: Raymed Pharmaceuticals Ltd
  • Form: Allopathy
  • Pregnancy Category: Consult doctor
  • Prescription Required: Yes

🇮🇳 aquanac eye drop के बारे में (Hindi Summary)

उपयोग: यह दवा आंखों की सूखापन, जलन, और खुजली को कम करने के लिए इस्तेमाल की जाती है। इसमें कार्बोक्सिमिथाइलसेलुलोज़ और एन-एसिटाइलकार्नोसिन होते हैं, जो आंखों को नमी देते हैं और ऑक्सीडेटिव नुकसान से बचाते हैं। यह मोतियाबिंद की शुरुआत में भी फायदेमंद मानी जाती है, लेकिन इसके लिए अधिक शोध की आवश्यकता है।

साइड इफेक्ट्स: आमतौर पर यह दवा सुरक्षित मानी जाती है। कुछ लोगों को डालने के तुरंत बाद धुंधला दिखाई दे सकता है, हल्की जलन या चुभन हो सकती है। ये लक्षण कुछ मिनटों में ठीक हो जाते हैं। कभी-कभी आंखें लाल हो सकती हैं या खुजली हो सकती है। गंभीर दुष्प्रभाव दुर्लभ हैं, लेकिन तेज दर्द, लगातार लालिमा, या दृष्टि में बदलाव होने पर तुरंत डॉक्टर से मिलें।

सुरक्षा सलाह: इस दवा का उपयोग करने से पहले अपने हाथ अच्छी तरह धो लें। ड्रॉपर की नोक को आंख या किसी सतह को न छुएं। एक बूंद आंख में डालें, फिर आंख बंद करके 1-2 मिनट तक आंख के भीतरी कोने पर हल्का दबाव डालें। अन्य आई ड्रॉप्स के साथ उपयोग करने से पहले 5 मिनट का अंतराल रखें। यदि आप गर्भवती हैं या स्तनपान करा रही हैं, तो डॉक्टर से सलाह लें। कॉन्टैक्ट लेंस पहनने से पहले डॉक्टर से पूछें।

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

💊 aquanac eye drop Uses & Benefits

[{"condition":"Dry eye disease","description":"Relieves dryness, burning, irritation, and gritty sensation by lubricating the ocular surface and stabilizing the tear film.","evidence":"Well-established for carboxymethylcellulose; n-acetylcarnosine component has supportive but limited evidence."},{"condition":"Keratoconjunctivitis sicca","description":"Provides symptomatic relief for patients with tear deficiency or poor tear quality.","evidence":"Well-established for lubricant component."},{"condition":"Post-operative ocular surface protection","description":"May be used after eye surgery to maintain moisture and comfort during healing.","evidence":"Common clinical practice, though specific evidence for the combination is limited."},{"condition":"Early cataract management (adjunctive)","description":"N-acetylcarnosine may help reduce oxidative stress in the lens, potentially slowing progression of early cataracts.","evidence":"Emerging; some studies suggest benefit but more research is needed."}]

Off-label uses: [{"condition":"Ocular surface protection during prolonged screen use","description":"Sometimes recommended to alleviate digital eye strain, though not a primary indication.","evidence":"Limited"},{"condition":"Adjunctive therapy for glaucoma","description":"Rarely used as an add-on to reduce oxidative damage, but not a standard treatment.","evidence":"Insufficient"}]

Primary treatment for: Dry eye disease

Also treats: Keratoconjunctivitis sicca, Post-operative ocular dryness, Early cataract (adjunctive)

📋 Drug Information

Generic Name(s)Carboxymethylcellulose + N-Acetylcarnosine
Brand NameAquanac Eye Drop
ManufacturerRaymed Pharmaceuticals Ltd
Packaging / FormVaries by brand (Allopathy)
Therapeutic ClassOPHTHAL
Action ClassOcular lubricant and antioxidant
Route of AdministrationOphthalmic (topical application to the eye)
StorageStore at room temperature (15-30°C). Protect from light and excessive heat. Do not freeze. Keep the bottle tightly closed when not in use.
Shelf LifeTypically 24 months from the date of manufacture. Discard 30 days after opening.
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
Use this medicine exactly as prescribed by your eye doctor; do not increase the frequency without consultation.
2
Always wash your hands before applying the drops to prevent contamination.
3
If you use multiple eye drops, wait at least 5 minutes between each to avoid washing out the previous medication.
4
Remove contact lenses before using this medicine and wait 15 minutes before reinserting them.
5
Store the bottle in a cool, dry place and discard it 30 days after opening.
6
If your symptoms do not improve within 7 days, consult your doctor for a reassessment.
7
Report any persistent eye pain, redness, or vision changes to your doctor immediately.

🔍 Is This Medicine Right for Your Symptom?

Educational reference. Always consult a doctor for diagnosis.

Dryness, burning, or grittiness in the eyes
This medicine is commonly prescribed for these symptoms.
Likely Use
Eye redness or itching
May be used if due to dryness, but consult a doctor if infection is suspected.
Likely Use
Blurred vision
This medicine may cause temporary blurring but is not a treatment for persistent blurred vision.
Not Primary
Eye pain
Eye pain may indicate a serious condition; seek medical advice.
Not Primary

🔬 How This Medicine Works (Pharmacology)

Pharmacokinetics

AbsorptionSystemic absorption following topical ocular administration is minimal. Carboxymethylcellulose is not absorbed through the cornea to a significant extent. N-acetylcarnosine can penetrate the cornea, but systemic levels after ocular dosing are negligible.
DistributionAfter ocular application, carboxymethylcellulose remains primarily on the ocular surface. N-acetylcarnosine distributes into the aqueous humor and lens tissues to some degree, but systemic distribution is not clinically significant.
Protein BindingNot established from the available information.
MetabolismCarboxymethylcellulose is not metabolized in the eye. N-acetylcarnosine is hydrolyzed by carnosinase enzymes to carnosine and acetic acid; carnosine may be further metabolized to beta-alanine and histidine.
Half-LifeNot established from the available information.
ExcretionAny absorbed components are excreted via normal metabolic pathways, primarily in urine. Unabsorbed material is cleared via the nasolacrimal duct and swallowed.
BioavailabilitySystemic bioavailability after ocular administration is very low, typically less than 5% for most ophthalmic drugs. For this medicine, systemic absorption is negligible.
Onset of ActionLubricating effects are felt within 1-2 minutes after instillation. Antioxidant effects of n-acetylcarnosine may take weeks to months to manifest.
Peak Plasma TimeNot applicable due to minimal systemic absorption.
Duration of ActionSymptomatic relief from lubrication typically lasts 1-2 hours, depending on individual tear production and environmental factors. The antioxidant effects are cumulative with regular use.

How It Works

This medicine combines two active ingredients with complementary mechanisms. Carboxymethylcellulose is a high molecular weight polymer that binds water and forms a protective film over the cornea and conjunctiva, increasing tear film stability and retention time. It mimics the natural mucin layer, reducing friction and lubricating the eye surface. N-acetylcarnosine is a dipeptide that penetrates the cornea and is converted to carnosine, which acts as an antioxidant, scavenging free radicals and inhibiting glycation of lens proteins. This dual action helps protect ocular tissues from oxidative stress and may improve lens clarity.

Mechanism Steps

1
Lubrication and film formation: Carboxymethylcellulose binds to the ocular surface and forms a hydrated gel-like layer that lubricates and protects the cornea and conjunctiva.
2
Tear film stabilization: The polymer increases the viscosity of the tear film, prolonging its retention and reducing tear evaporation.
3
Antioxidant action: N-acetylcarnosine penetrates ocular tissues and is hydrolyzed to carnosine, which neutralizes free radicals and reactive oxygen species.
4
Anti-glycation effect: Carnosine inhibits glycation of lens proteins, potentially preventing cross-linking and opacification associated with cataract formation.

💡 How to Take aquanac eye drop

Strength: Carboxymethylcellulose 3 mg/mL + n-acetylcarnosine 10 mg/mL ophthalmic solution.

1Wash your hands thoroughly with soap and water.
2Shake the bottle gently if instructed.
3Tilt your head back and look up.
4Pull down your lower eyelid to create a small pocket.
5Hold the dropper above the eye and squeeze one drop into the pocket without touching the eye.
6Close your eye gently and press the inner corner for 1-2 minutes.
7Wipe away any excess liquid with a clean tissue.
8Replace the cap tightly.

Dosage Information

Adult DosageThe usual adult dose is one drop in the affected eye(s) as needed, typically 3 to 4 times daily, or as directed by your eye doctor. For severe dry eye, more frequent use may be recommended. The dose must be individualized by a qualified clinician based on the severity of symptoms, underlying condition, and response to therapy. Do not exceed the frequency advised by your doctor.
Pediatric DosagePediatric dosing is not established from available information. Consult a pediatrician or eye specialist for use in children.
Elderly DosageElderly patients can use this medicine at the same dosage as adults. No specific dose adjustment is required, but regular eye check-ups are advised.
Renal ImpairmentNo dose adjustment is required for renal impairment due to minimal systemic absorption.
Hepatic ImpairmentNo dose adjustment is required for hepatic impairment due to minimal systemic absorption.
Maximum Daily DoseThere is no established maximum daily dose for topical ophthalmic use. Follow your doctor's instructions. Typically, up to 6-8 drops per day may be used, but individual guidance is necessary.

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 aquanac eye drop

✅ Common Side Effects

Temporary blurred vision (Common (up to 10%))
Wait a few minutes until vision clears before driving or operating machinery.
Mild stinging or burning (Common (5-10%))
Usually resolves within minutes. If persistent, consult your eye doctor.
Foreign body sensation (Common (5-10%))
May be due to the drop itself; if it continues, discuss with your doctor.
Eye redness (Uncommon (1-5%))
If redness persists or worsens, stop use and consult a doctor.

🚨 Serious Side Effects

Severe eye pain (Rare (<0.1%))
Seek immediate medical attention.
Persistent vision changes (Rare (<0.1%))
Contact your eye doctor promptly.
Signs of allergic reaction (rash, swelling, difficulty breathing) (Very rare (<0.01%))
Discontinue use and seek emergency care.

⚠️ Rare Side Effects

Corneal edema
Consult an ophthalmologist immediately.
Iritis
Seek medical attention.

Consult your doctor if you experience any unusual symptoms.

🛡️ Safety & Warnings

🚫 Contraindications

["Known hypersensitivity to carboxymethylcellulose, n-acetylcarnosine, or any component of the formulation.","Active eye infection unless approved by a doctor."]

⚠️ Warnings & Precautions

["Do not touch the dropper tip to any surface to avoid contamination.","If you experience eye pain, vision changes, or persistent redness, stop use and consult a doctor.","Remove contact lenses before use and wait 15 minutes before reinserting, unless advised otherwise.","Use before the expiry date and discard any unused solution 30 days after opening.","Keep out of reach of children.","If symptoms worsen or do not improve after 7 days, consult your doctor."]

🤱 Lactation Safety

It is not known whether this medicine passes into breast milk. Systemic absorption is minimal, so risk to the infant is likely low. Consult your doctor before using this medicine while breastfeeding.

💊 Overdose Management

Overdose with this medicine is unlikely due to its topical route. If accidental ingestion occurs, drink plenty of water and seek medical advice if symptoms develop. If excessive drops are instilled, rinse the eye with clean water if irritation occurs.

⏰ 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

Wash your hands thoroughly before using this medicine. Tilt your head back, pull down your lower eyelid to form a small pocket, and squeeze one drop into the pocket without touching the dropper tip to your eye or any surface. Close your eye gently for 1-2 minutes and press lightly on the inner corner of your eye to prevent the drop from draining into your throat. If you use other eye drops, wait at least 5 minutes between applications. Do not use this medicine if the solution changes color or becomes cloudy. Do not share your eye drops with anyone else to avoid contamination. Keep the bottle tightly closed when not in use. If you are pregnant or breastfeeding, consult your doctor before using this medicine. If you have a history of eye infections, glaucoma, or any other eye condition, inform your doctor before starting this medicine. Do not use this medicine while wearing contact lenses unless your doctor approves; if approved, remove lenses before application and wait 15 minutes before reinserting. If you miss a dose, apply it as soon as you remember, but if it is almost time for your next dose, skip the missed dose and continue with your regular schedule. Do not double the dose.

👴 Special Considerations for Elderly

💡 For Patients Above 65

Elderly patients can use this medicine safely. However, they should have regular eye check-ups to monitor for age-related eye conditions such as cataracts and macular degeneration.

🤰 Pregnancy Planning (TTC)

If you are planning to become pregnant, consult your doctor before using this medicine. Although systemic absorption is minimal, the safety of n-acetylcarnosine during pregnancy has not been established.

🏥 Post-Surgery Considerations

This medicine may be used after eye surgery to maintain lubrication and comfort. Follow your surgeon's instructions regarding when to start using it and how often.

🦷 Dental Procedures

No specific considerations for dental procedures. Continue using this medicine as prescribed.

💚 Lifestyle Tips for Better Results

🏃
Stay hydrated by drinking plenty of water throughout the day.
🥗
Use a humidifier in dry environments to keep air moist.
😴
Take regular breaks from screens and blink frequently.
💧
Wear sunglasses outdoors to protect your eyes from wind and UV rays.
🧘
Avoid smoking and exposure to secondhand smoke.
🌞
Get adequate sleep to allow your eyes to rest and recover.

🏋️ Exercise Considerations

No specific exercise restrictions while using this medicine. However, if you experience temporary blurred vision after application, avoid activities that require clear vision until it resolves.

🥗 Diet Recommendations

Include omega-3 fatty acids from fish or flaxseed to support eye health.
Eat a variety of colorful fruits and vegetables rich in antioxidants.
Reduce intake of processed foods and sugary drinks.
Consider foods rich in vitamin C, vitamin E, and zinc.

💼 Impact on Daily Work & Life

This medicine may cause temporary blurred vision immediately after application, which can affect driving or operating machinery. Wait until your vision clears before engaging in such activities. Otherwise, it has no significant impact on daily work or lifestyle.

🛑 When to Stop This Medicine

Stop using this medicine and consult your doctor if you experience severe eye pain, persistent redness, vision changes, or signs of an allergic reaction. Do not stop using it without consulting your doctor if it was prescribed for a specific condition.

📅 Long-Term Use Effects

Long-term use of this medicine is generally safe. Carboxymethylcellulose is well-tolerated for chronic dry eye. N-acetylcarnosine has been studied for up to 6-12 months with no major safety concerns. Regular eye examinations are recommended to monitor your eye health and adjust treatment if needed.

🌿 Non-Medicine Approaches

These can complement medicine but do not replace prescribed treatment.

Warm compresses

Can help relieve dry eye symptoms by improving oil gland function.

Evidence: Well-established
Omega-3 supplements

May reduce inflammation and improve tear quality.

Evidence: Moderate
Punctal plugs

A medical procedure to block tear drainage, preserving natural tears.

Evidence: Well-established for severe dry eye

💉 Vaccination Considerations

💉 If You're Getting Vaccinated

No known interaction between this medicine and vaccines. You can receive vaccinations while using this medicine.

📦 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

Discard 30 days after opening

❌ DON'T

Do not use beyond expiry date

✈️ Traveling with This Medicine

When traveling, carry this medicine in your hand luggage to avoid extreme temperatures in checked baggage. Keep it in its original packaging with the prescription label. If you are flying, the bottle is generally allowed in carry-on as it is a liquid medication, but you may need to declare it. For international travel, carry a copy of your prescription to avoid customs issues. If crossing time zones, continue your regular dosing schedule; no adjustment is needed for this eye drop. Store away from direct sunlight and heat.

💰 Cost Analysis & Savings

👥 Real Patient Stories

Educational, anonymized scenarios. Individual results may vary.

👤 A 58-year-old woman with chronic dry eye due to computer work
She started using this medicine twice daily as recommended by her ophthalmologist. Within a week, she noticed significant relief from burning and grittiness. She also appreciated that it did not cause excessive blurring, allowing her to continue working. She now uses it regularly and keeps a bottle at her desk.
💡 Lesson: Consistent use of lubricating eye drops can greatly improve comfort for people with dry eye, especially those with high screen time.
👤 A 65-year-old man with early cataracts
He was prescribed this medicine by his eye doctor to help slow cataract progression. After using it for three months, his eye doctor noted no significant worsening of lens opacity. He also reported less glare and better contrast sensitivity. He continues to use it as part of his eye care routine.
💡 Lesson: While not a cure, this medicine may help maintain lens clarity in early cataracts when used regularly under medical supervision.

💬 Questions Patients Often Ask

Q: How long does it take to work?

A: Lubricating effects are felt within 1-2 minutes. For antioxidant benefits related to cataracts, it may take several weeks to months of regular use.

Q: Can I use this medicine if I wear contact lenses?

A: Remove contact lenses before applying this medicine and wait at least 15 minutes before reinserting them, unless your eye doctor advises otherwise.

Q: Is this medicine safe during pregnancy?

A: Consult your doctor before use if you are pregnant or planning to become pregnant. Systemic absorption is minimal, but safety has not been established.

Q: What should I do if I experience side effects?

A: Mild side effects like temporary blurring or stinging usually resolve. If you experience severe pain, persistent redness, or vision changes, stop use and contact your doctor.

🤔 Common Patient Concerns

💭 These are the concerns patients most commonly raise

  • Can I use this medicine every day?
  • Will this medicine help my cataracts?
  • Can I use this medicine with other eye drops?
  • Is this medicine safe for children?
  • What should I do if I miss a dose?
  • Can I wear contact lenses while using this medicine?

🔄 Substitutes for aquanac eye 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 cataracts completely.
    Fact: There is no proven cure for cataracts with eye drops. This medicine may help slow progression but does not reverse existing cataracts. Surgery remains the definitive treatment.
  • Myth: Using this medicine frequently is harmful.
    Fact: When used as directed, frequent use is generally safe. However, excessive use may cause temporary blurring or irritation.
  • Myth: This medicine can replace the need for glasses.
    Fact: This medicine does not correct refractive errors. It only provides lubrication and antioxidant support.

🔄 Alternative Options

Generic Alternatives

  • Carboxymethylcellulose 0.5% eye drops
  • Carboxymethylcellulose 1% eye drops
  • N-acetylcarnosine 1% eye drops

📊 Comparison with Similar Medicines

[{"medicine":"This medicine","active_ingredients":"Carboxymethylcellulose + N-acetylcarnosine","primary_use":"Dry eye, antioxidant support","prescription_required":false},{"medicine":"Sodium hyaluronate eye drops","active_ingredients":"Sodium hyaluronate","primary_use":"Dry eye","prescription_required":false},{"medicine":"Hydroxypropyl methylcellulose eye drops","active_ingredients":"Hydroxypropyl methylcellulose","primary_use":"Dry eye","prescription_required":false}]

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