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Ovanac Tablet

Written By Dr. Syeda Aafia, MBA, BDS
Reviewed By Dr. Mekhala Chandra, MD, MBBS
Last updated on 09 Apr 2026 | 10:21 PM (IST)
Ovanac Tablet is a prescription medicine used in the treatment of respiratory disease with excessive mucus. This medicine helps reduce mucus secretion in various lung diseases such as bronchitis, asthma, and emphysema.
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General Information

Contains

Acetylcysteine (600mg)

Marketer

Nexgen Healthcare Pvt Ltd

Storage

Store below 30°C
The content is shown in English
Ovanac Tablet image
Ovanac Tablet image
Ovanac Tablet image
Ovanac Tablet image
Ovanac Tablet image
Ovanac Tablet image

Product introduction

Ovanac Tablet can be taken after meals. Try to take it at the same time each day to get the most benefit. Take this medicine only on your doctor’s advice. The dose and how often you take it depend on the condition being treated. Your doctor will decide the appropriate dose to improve your symptoms. Dissolve the tablet in a glass of water and drink it immediately. Continue taking this medicine for as long as it is prescribed.


The most common side effects of this medicine include nausea and vomiting. If these bother you or appear serious, let your doctor know. There may be ways of reducing or preventing them. Generally, it is advised to drink plenty of fluids while on treatment with this medicine.


Before taking this medicine, inform your doctor if you have asthma, as close monitoring may be required while using this medicine. Your doctor should also know about all other medicines you are taking, as some medicines may make this medicine less effective or change the way it works. Inform your doctor if you are pregnant, planning to become pregnant, or breastfeeding.

Uses of Ovanac Tablet

  • Treatment of Respiratory disease with excessive mucus

Benefits of Ovanac Tablet

Treatment of Respiratory disease with excessive mucus
Respiratory conditions with excess mucus can cause cough, chest tightness, and breathing difficulty. Ovanac Tablet helps loosen and thin thick mucus, making it easier to cough out. This clears the airways, relieves congestion, and improves breathing in conditions such as bronchitis, COPD, and respiratory infections. It also helps reduce coughing and supports better daily functioning.

Side effects of Ovanac Tablet

Most side effects do not require any medical attention and disappear as your body adjusts to the medicine. Consult your doctor if they persist or if you’re worried about them
Common side effects of Ovanac
  • Nausea
  • Vomiting

How to use Ovanac Tablet

Take this medicine in the dose and duration as advised by your doctor. Swallow it as a whole. Do not chew, crush or break it. Ovanac Tablet should be taken with or after food.

How Ovanac Tablet works

Ovanac Tablet is a mucolytic medication. It works by thinning the mucus (phlegm), making it easier to cough out. Thus, it clears the air passages and makes breathing easier. It also has antioxidant action.

All substitutes for Ovanac Tablet

For information purposes only. Consult a doctor before taking any medicine.

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Quick tips

  • A mild sulfur-like odor from Ovanac Tablet is normal and does not mean the medicine has deteriorated.
  • Drink plenty of fluids while taking Ovanac Tablet, as this helps loosen mucus and improves airway clearance.
  • You may notice a more productive cough as mucus becomes thinner, which is usually part of the medicine’s action.
  • Take Ovanac Tablet after food if it causes stomach upset or nausea.
  • Avoid smoking and exposure to dust or irritants, as they can worsen respiratory symptoms.
  • Do not combine Ovanac Tablet with multiple cough medicines unless your doctor advises you to.
  • If you have asthma, monitor for worsening wheezing and seek medical advice if breathing difficulty increases.
  • Seek immediate medical help if you develop a rash, facial swelling, or difficulty breathing.
  • Consult your doctor if symptoms such as cough, fever, chest pain, or breathlessness persist or worsen.
  • If symptoms continue beyond 1–2 weeks, consult your doctor for further evaluation.

Safety advice

Alcohol

Alcohol

CONSULT YOUR DOCTOR
It is not known whether it is safe to consume alcohol with Ovanac Tablet. Please consult your doctor.
Pregnancy

Pregnancy

CONSULT YOUR DOCTOR
The safety of Ovanac Tablet during pregnancy has not been established. There are no adequate and well-controlled studies in pregnant women, and animal data on reproductive toxicity are insufficient. Your doctor will weigh the benefits and any potential risks before prescribing.
Breast feeding

Breast feeding

CONSULT YOUR DOCTOR
Information regarding the use of Ovanac Tablet during breastfeeding is not available. Please consult your doctor.
Driving

Driving

SAFE
Ovanac Tablet does not usually affect your ability to drive.
Kidney

Kidney

CONSULT YOUR DOCTOR
There is limited data available on the use of Ovanac Tablet in patients with kidney disease. Please consult your doctor.
Liver

Liver

CAUTION
Ovanac Tablet should be used with caution in patients with liver disease. Dose adjustment may be needed.

Interaction with drugs

Taking Ovanac with any of the following medicines can modify the effect of either of them and cause some undesirable side effects
Moderate

Nitroglycerin (Oral Route)

If concurrent use is essential, watch out for symptoms such as dizziness, fainting, blurred vision, nausea, fatigue, confusion, cold or clammy skin, shallow breathing or rapid pulse and consult your doctor if you experience them. They may adjust the doses as per the observations. Acetylcysteine may increase the effect of Nitroglycerin.
Moderate

Nitroglycerin (Injection Route)

If concurrent use is essential, watch out for symptoms such as dizziness, fainting, blurred vision, nausea, fatigue, confusion, cold or clammy skin, shallow breathing or rapid pulse and consult your doctor if you experience them. They may adjust the doses as per the observations. Acetylcysteine may increase the effect of Nitroglycerin.
Moderate

Nitroglycerin (Transdermal Route)

If concurrent use is essential, watch out for symptoms such as dizziness, fainting, blurred vision, nausea, fatigue, confusion, cold or clammy skin, shallow breathing or rapid pulse and consult your doctor if you experience them. They may adjust the doses as per the observations. Acetylcysteine may increase the effect of Nitroglycerin.
Moderate

Nitroglycerin (Sublingual route)

If concurrent use is essential, watch out for symptoms such as dizziness, fainting, blurred vision, nausea, fatigue, confusion, cold or clammy skin, shallow breathing or rapid pulse and consult your doctor if you experience them. They may adjust the doses as per the observations. Acetylcysteine may increase the effect of Nitroglycerin.
Moderate

Nitroglycerin (Rectal Route)

If concurrent use is essential, watch out for symptoms such as dizziness, fainting, blurred vision, nausea, fatigue, confusion, cold or clammy skin, shallow breathing or rapid pulse and consult your doctor if you experience them. They may adjust the doses as per the observations. Acetylcysteine may increase the effect of Nitroglycerin.

Frequently asked questions

Ovanac Tablet should be taken only for the duration advised by your doctor. For respiratory conditions with thick mucus, it is often used for about 5 days, but treatment may be extended up to 2 weeks depending on your condition. Take it as directed by your doctor. If it causes stomach discomfort, it may be taken after food, and maintaining good hydration may help during treatment.
You should not start taking cough syrups that suppress coughing without consulting your doctor while using Ovanac Tablet. Some cough medicines reduce the cough reflex, which may interfere with the medicine’s action of clearing mucus. Your doctor may recommend a suitable expectorant if needed.
In rare cases, long-term or high-dose use of Ovanac Tablet has been associated with a decrease in hemoglobin levels, which may contribute to anemia. If prolonged treatment is required, your doctor may recommend monitoring blood counts. Consult your doctor if you develop unusual weakness, fatigue, or other concerning symptoms.
Ovanac Tablet is used to treat respiratory conditions that involve thick mucus, such as cough with phlegm, bronchitis, or other lung infections. It contains acetylcysteine, which works by thinning and loosening mucus in the airways. This helps make mucus easier to cough out and improves breathing by clearing the air passages.
Yes, Ovanac Tablet is commonly used to help reduce thick phlegm in the airways. It works by breaking down mucus so it becomes thinner and easier to remove through coughing. This can help improve breathing and reduce chest congestion.
Ovanac Tablet may begin working soon after it is taken, but the time it takes to notice symptom relief can vary between individuals. Improvement usually occurs gradually as mucus becomes thinner and easier to clear from the airways.
Some people may experience stomach upset, nausea, vomiting, diarrhea, or dizziness while using Ovanac Tablet. These side effects are usually mild and temporary. Stop using the medicine and seek medical help if you develop breathing difficulty, severe rash, swelling of the face, or fainting.
If you miss a dose of Ovanac Tablet, take it as soon as you remember unless it is almost time for your next dose. In that case, skip the missed dose and continue with your regular schedule. Do not double the dose to make up for the missed one.
Ovanac Tablet may be taken with or without food depending on your doctor’s advice. Some people prefer taking it after meals to reduce stomach discomfort. Follow your doctor’s instructions regarding the timing of doses.
It is generally advisable to avoid alcohol while using Ovanac Tablet because alcohol may worsen side effects such as stomach irritation, dizziness, or dehydration.
Ovanac Tablet should be used only under medical advice, especially during pregnancy or breastfeeding. People with kidney or liver problems should use it cautiously and under medical supervision. Always inform your doctor about your medical history and other medicines before starting treatment.

Fact Box

Chemical Class

N-Acylated Alpha Amino Acids

Habit Forming

No

Therapeutic Class

RESPIRATORY

Action Class

Mucolytics

References

  1. Briggs GG, Freeman RK, editors. A Reference Guide to Fetal and Neonatal Risk: Drugs in Pregnancy and Lactation. 10th ed. Philadelphia, PA: Wolters Kluwer Health; 2015. pp. 13-15.
  2. Acetylcysteine (N-Acetylcysteine). In: Hitchings A, Lonsdale D, Burrage D, et al., editors. The Top 100 Drugs: Clinical Pharmacology and Practical Prescribing. Churchill Livingstone Elsevier; 2015.
  3. Acetylcysteine. Burnopfield, County Durham: Colonis Pharma Ltd.; 2016 [revised 04 Jul. 2018]. [Accessed 01 Apr. 2019] (online) Available from:
  4. United Laboratories. N-Acetylcysteine [Product Information]. [Accessed 09 Jun, 2023] (online) Available from:
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User feedback

Once A Day
44%
Twice A Day
38%
Thrice A Day
18%
Others
100%
Average
41%
Excellent
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Poor
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25%
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60%
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Disclaimer

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.

Marketer details

Name: Nexgen Healthcare Pvt Ltd
Address: 102 & 103, Gayatri Commercial Complex, Behind Mittal Industrial Estate, Marol, Andheri (E), Mumbai - 4000 59. INDIA

Vendor Details

Country of origin: India
A licensed vendor partner from your nearest location will deliver Ovanac Tablet. 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

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Most medicines cannot be sold without a valid prescription, as per the Drugs and Cosmetics Act, 1940 and Rules, 1945
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