Acetylcysteine - Inhalation

Patient Medicine Information
Why do I need this medicine?
Acetylcysteine is used together with other medicines to treat lung disorders associated with abnormal, thick and viscous mucous secretions (phlegm).

This medicine reduces the thickness of the phlegm, so it can be cough up more easily.

Acetylcysteine may be used to treat other conditions as decided by your doctor.
How do I use this medicine?
Use this medicine exactly as directed by your doctor or according to the instructions on the label. Do not take more or less than instructed by your doctor.

The dose of this medicine will be decided by your doctor. Your doctor will advise you on the treatment timeframe depending on your condition.

Acetylcysteine is available as a nebulising solution, to be used with a machine known as a nebuliser.

To use this medicine:
  1. Place the solution in the small chamber called the nebuliser.
  2. Attach the nebuliser to an oxygen mask.
  3. Attach the tubing from the oxygen mask to the container of compressed air.
  4. Place the mask over your nose and mouth. Make sure that it fits firmly.
  5. Feed the compressed air into the tubing at the pressure level your doctor told you.
  6. Once all of the solution is gone from the nebuliser, turn off the compressed air and remove the mask.
Make sure you know how to use the specific device or machine you have been given. If you have problems or do not understand the instructions, ask your doctor or pharmacist to show you how to use it.
What should I do if I have forgotten to use this medicine?
Use the missed dose as soon as you remember. If it is almost time for your next dose, skip the missed dose and return to your normal dosing schedule.

DO NOT double a dose under any circumstances.
What should I take note of while using this medicine?
Inform your doctor if you have the following conditions:
  • asthma
  • bronchospasm (breathing distress caused by narrowing of the airways)
Let your doctor know if you are pregnant or breastfeeding.
What side effects could I experience?
Acetylcysteine may cause drowsiness. If affected, do not drive or take part in any activity in which you need to be alert.

Other side effects include any of the following: nausea, vomiting, sore mouth, runny nose, clamminess, and chest tightness.

Inform your doctor if any of these side effects do not go away or are severe, or if you experience other side effects.
Can I use this with other medicines?
Inform your doctor and pharmacist if you are taking any antibiotics e.g. tetracycline, erythromycin.

Always notify your doctor and pharmacist if you are taking any other medicines, including herbal tonics such as traditional Chinese medicines, supplements and medicines that you buy without a prescription.
How should I store this medicine?
Store in a cool, dry place away from the reach of children.

Medicines must not be used past the expiry date.
This information is independently developed by MIMS based on Acetylcysteine - Inhalation and is provided for your reference only. It is not a replacement for and should only be used in conjunction with full consultation with a licensed healthcare professional, the information provided by your pharmacist and/or the manufacturer of the medication. It may not contain all the available information you require and cannot substitute professional medical care, nor does it take into account all individual circumstances. Although great effort has been made to ensure content accuracy, we shall not be held responsible or liable for any claims or damages arising from the use or misuse of the information contained herein, its contents or omissions, or otherwise. Copyright © 2021 MIMS. All rights reserved. Powered by
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