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What is it? Overview Usage Side Effects and Warnings

Acetylcysteine Overview

Written by FoundHealth.

(a se teel SIS teen)

U.S. Brand Names


Canadian Brand Names

Acetylcysteine Solution; Mucomyst®; Parvolex®

Mexican Brand Names


Pharmacologic Category

Antidote; Mucolytic Agent

Reasons not to take this medicine

• If you have an allergy to acetylcysteine or any other part of this medicine.

• Tell healthcare provider if you are allergic to any medicine. Make sure to tell about the allergy and how it affected you. This includes telling about rash; hives; itching; shortness of breath; wheezing; cough; swelling of face, lips, tongue, or throat; or any other symptoms involved.

How does it work?

• Acetylcysteine thins fluids in the lungs.

• It prevents dangerous chemicals from forming.

How is it best taken?


• For inhaling (puffing) only as a liquid (solution) through a special machine (nebulizer) into the lungs.


• This medicine is given as a shot into a vein over a period of time.


• Mix with juice or soda and drink.

• Drink plenty of noncaffeine-containing liquid unless told to drink less liquid by healthcare provider.

What do I do if I miss a dose? (does not apply to patients in the hospital)

• Use a missed dose as soon as possible.

• If it is almost time for the next dose, skip the missed dose and return to your regular schedule.

• Do not use a double dose or extra doses.

• Many times this medicine is taken on an as needed basis.

What should I monitor?

• Change in condition being treated. Is it better, worse, or about the same?

• Follow up with healthcare provider.

How should I store this medicine?


• Store opened vials in a refrigerator. Throw away any unused portion after 4 days.


• This medicine will be given to you in a healthcare setting. You will not store it at home.

General statements

• If you have a life-threatening allergy, wear allergy identification at all times.

• Do not share your medicine with others and do not take anyone else's medicine.

• Keep all medicine out of the reach of children and pets.

• Most medicines can be thrown away in household trash after mixing with coffee grounds or kitty litter and sealing in a plastic bag.

• Keep a list of all your medicines (prescription, natural products, supplements, vitamins, over-the-counter) with you. Give this list to healthcare provider (doctor, nurse, nurse practitioner, pharmacist, physician assistant).

• Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088 or in Canada to Health Canada's Canada Vigilance Program at 1-866-234-2345.

• Talk with healthcare provider before starting any new medicine, including over-the-counter, natural products, or vitamins.

Created: 2006-10-13 10:22:58.0

Modified: 2010-03-19 12:08:38.0

Lexi-PALS TM © (1977)-(2007) Lexi-Comp, Inc. All rights reserved.



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