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Onecuf A Syrup medicine is used for symptomatic relief of bronchospasm in bronchial asthma and chronic bronchitis. This combination medicine relaxes the muscles walls of the small airways in the lungs. It also thins and loosens thick mucus in the air passages, making it easier to cough out.
Written By Dr. Subita Alagh, BDS,
Reviewed By Dr. Mekhala Chandra, MD, MBBS,
Last updated on 02 Feb 2026 | 01:31 AM (IST)
Written By Dr. Subita Alagh, BDS,
Reviewed By Dr. Mekhala Chandra, MD, MBBS,
Last updated on 02 Feb 2026 | 01:31 AM (IST)
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General Information
The content is shown in English



Product introduction
Onecuf A Syrup may be taken with or without food. However, take it in the dose and duration as advised by your doctor, and keep taking this medicine for as long as the doctor has recommended. The dose and duration will depend on your condition and how you respond to the medicine. If you stop the treatment too early, your symptoms may come back and your condition may worsen.
Common side effects of Onecuf A Syrup include nausea, vomiting, diarrhea, stomach pain, upset stomach, dizziness, and headache. Most of these symptoms are temporary and usually resolve with time. Let the doctor know in case they persist or worsen. This medicine can also cause sleepiness, so do not drive or do anything that requires mental focus until you know how this medicine affects you. Avoid drinking alcohol while taking this medicine as it can worsen sleepiness.
Before taking this medicine, tell the health professional about all the other medications you are taking as some of them may affect or be affected by this combination medicine. Additionally, you should tell the doctor if you are pregnant, planning to get pregnant, or breastfeeding.
Common side effects of Onecuf A Syrup include nausea, vomiting, diarrhea, stomach pain, upset stomach, dizziness, and headache. Most of these symptoms are temporary and usually resolve with time. Let the doctor know in case they persist or worsen. This medicine can also cause sleepiness, so do not drive or do anything that requires mental focus until you know how this medicine affects you. Avoid drinking alcohol while taking this medicine as it can worsen sleepiness.
Before taking this medicine, tell the health professional about all the other medications you are taking as some of them may affect or be affected by this combination medicine. Additionally, you should tell the doctor if you are pregnant, planning to get pregnant, or breastfeeding.
Uses of Onecuf A Syrup
- Symptomatic relief Asthma
- Symptomatic relief Chronic Bronchitis
Benefits of Onecuf A Syrup
Symptomatic relief Asthma
Onecuf A Syrup relaxes airway passages, clears congestion, and helps the patient breathe comfortably.
Onecuf A Syrup relaxes airway passages, clears congestion, and helps the patient breathe comfortably.
Symptomatic relief Chronic Bronchitis
Bronchitis leads to chest congestion and wheezing. Onecuf A Syrup relieves symptoms of bronchitis by clearing congestion and relaxing airways.
Bronchitis leads to chest congestion and wheezing. Onecuf A Syrup relieves symptoms of bronchitis by clearing congestion and relaxing airways.
Side effects of Onecuf A Syrup
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 Onecuf A
- Nausea
- Vomiting
- Diarrhea
- Stomach pain
- Upset stomach
- Dizziness
- Headache
How to use Onecuf A Syrup
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. Onecuf A Syrup may be taken with or without food.
How Onecuf A Syrup works
Onecuf A Syrup is a combination of ambroxol, guaifenesin, menthol, and salbutamol. Ambroxol and guaifenesin work by thinning and loosening the mucus in the airways and clearing congestion. Salbutamol makes breathing easier by relaxing the muscles of the airways, and menthol soothes the throat.
Quick tips
- Drink warm water to help loosen the congestion and lubricate your throat while you are taking this medication.
- If at any time your breathing gets worse, please contact your doctor or nurse for advice straightaway.
- Do not smoke. Smoking causes irritation and damage to the lungs and will worsen your condition.
- Try to keep your regular appointments with your doctor so they can review your condition on a regular basis.
Safety advice

Alcohol
CONSULT YOUR DOCTOR
It is not known whether it is safe to consume alcohol with Onecuf A Syrup. Please consult your doctor.

Pregnancy
CONSULT YOUR DOCTOR
Onecuf A Syrup is not recommended during pregnancy as there is positive evidence of fetal risk based on animal studies. However, it may still be prescribed by a doctor in situations where the benefits outweigh the risks.

Breast feeding
UNSAFE
Onecuf A Syrup is unsafe to use during breastfeeding. Data suggests that the drug may cause toxicity to the baby.

Driving
CONSULT YOUR DOCTOR
It is not known whether Onecuf A Syrup alters the ability to drive. Do not drive if you experience any symptoms that affect your ability to concentrate and react. Please consult your doctor.

Kidney
CAUTION
Onecuf A Syrup should be used with caution in patients with kidney disease. Dose adjustment may be needed.

Liver
CAUTION
Onecuf A Syrup should be used with caution in patients with liver disease. Dose adjustment may be needed.
Fact Box
Habit Forming
No
Therapeutic Class
RESPIRATORY
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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: Greystar Pharma
Address: 777/2, Thakur Dwara Rd, Sector 13, Chandigarh, 160101
Address: 777/2, Thakur Dwara Rd, Sector 13, Chandigarh, 160101
Vendor Details
Country of origin: India
Lab tests offered by us
- CBC (Complete Blood Count)
- FBS (Fasting Blood Sugar)
- Thyroid Profile Total (T3, T4 & TSH)
- HbA1c (Glycosylated Hemoglobin)
- PPBS (Postprandial Blood Sugar)
- Lipid Profile
- Vitamin D (25-Hydroxy)
- Urine R/M (Urine Routine & Microscopy)
- Coronavirus Covid -19 test- RT PCR
- LFT (Liver Function Test)
- KFT (Kidney Function Test)
- TSH (Thyroid Stimulating Hormone) Ultrasensitive
- ESR (Erythrocyte Sedimentation Rate)
- Uric Acid, Serum
- Vitamin B12
- CRP (C-Reactive Protein), Quantitative
- Urine C/S (Urine Culture and Sensitivity)
- Serum Electrolytes
- Serum Calcium
- Serum Creatinine
- Diabetes Screening (HbA1C & Fasting Sugar)
- KFT with Electrolytes (Kidney Function Test with Electrolytes)
- Cholesterol - Total
- Hb (Hemoglobin)
- Complete Hemogram (CBC & ESR)
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