Go Here Test

More Diets

Go Here Test

Acetylcysteine

Pronounced

"a-SEET-il-SIS-teen"

Common brand names:

Parvolex

Uses

When inhaled by mouth, acetylcysteine is used to help thin and loosen mucus in the airways due to certain lung diseases (such as emphysema, bronchitis, cystic fibrosis, pneumonia). This effect helps you to clear the mucus from your lungs so that you can breathe easier.

When taken by mouth, acetylcysteine is used to prevent liver damage from acetaminophen overdose.

Other Uses

This section contains uses of this drug that are not listed in the approved professional labeling for the drug but that may be prescribed by your health care professional. Use this drug for a condition that is listed in this section only if it has been so prescribed by your health care professional.

.This drug may also be taken by mouth to reduce the risk of kidney damage due to dyes from certain X-ray procedures (such as CT scan).

How to Use This Medication

If you are using this medication to treat lung disease, inhale this medication by mouth as directed by your doctor. A health care professional will show you the proper way to use this medication. Learn all preparation and usage instructions.

You may notice a slight odor when you first breathe in the medication. This odor will quickly go away. If you are using a face mask to breathe in the medication, there may be some stickiness on your face after use. Wash your face with water to remove the stickiness.

Do not mix acetylcysteine with other inhaled medications unless directed by the doctor or pharmacist.

If you are taking this medication by mouth, take it as directed by your doctor. The solution is usually mixed with another liquid (such as cola) to decrease nausea and vomiting. Drink the medication within 1 hour of mixing.

Tell your doctor if you vomit within 1 hour after taking your medication. You may need to take another dose.

The dosage is based on your medical condition and response to treatment. For acetaminophen overdose, the dosage is also be based on your weight.

Tell your doctor if your condition does not improve or if it worsens.

Copyright © 2025 TraceGains, Inc. All rights reserved.

RxAnswers™ is a copyrighted combined product from TraceGains and First DataBank, Inc.

Drug information is selected from data included with permission and copyrighted by First DataBank, Inc. This is a summary and does not contain all possible information about this product. For complete information about this product or your specific health needs, ask your healthcare professional. Always seek the advice of your healthcare professional if you have any questions about this product or your medical condition. This information is not intended as individual medical advice and does not substitute for the knowledge and judgment of your healthcare professional. This information does not contain any assurances that this product is safe, effective or appropriate for you.

This information is intended only for residents of the United States. Products sold under the same brand names in other countries may contain different ingredients.

Learn more about First DataBank

There are some limitations on the information provided in “Nutrient Interactions.” Do NOT rely solely on the information in this article. Please read the disclaimer.

Learn more about TraceGains, the company.

TraceGains and/or its suppliers make no warranties or representations as to the accuracy or completeness of this content herein or that of any organization referred or linked to within this content and will not be liable for any damages arising out of your access to or use of any information found herein or that of any organization referred to within this content.

Information expires December 2025.