Proper Use
Drug information provided by: Merative, Micromedex®
Use acetylcysteine only as directed. Do not use more of it and do not use it more often than your doctor ordered. To do so may increase the chance of side effects.
If you are using this medicine at home, make sure you understand exactly how to use it. If you have any questions about this, check with your doctor.
After using acetylcysteine, try to cough up the loosened or thinned mucus. If this does not work, it may have to be suctioned out. This will prevent too much mucus from building up in the lungs. If you have any questions about this, check with your doctor.
Dosing
The dose of this medicine will be different for different patients. Follow your doctor's orders or the directions on the label. The following information includes only the average doses of this medicine. If your dose is different, do not change it unless your doctor tells you to do so.
The amount of medicine that you take depends on the strength of the medicine. Also, the number of doses you take each day, the time allowed between doses, and the length of time you take the medicine depend on the medical problem for which you are using the medicine.
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For inhalation dosage form (solution):
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To thin or dissolve mucus in lung diseases:
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Adults and children—
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3 to 5 milliliters (mL) of a 20% solution or 6 to 10 mL of a 10% solution used in a nebulizer three or four times a day. The medicine is inhaled through a face mask, mouthpiece, or tracheostomy.
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The 10 or 20% solution may be used for inhalation as a heavy mist in a tent or croupette.
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Sometimes the 10 or 20% solution is placed directly into the trachea or through a catheter into the trachea for certain conditions.
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For use in tests to diagnose lung problems:
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Adults and children—1 to 2 mL of a 20% solution or 2 to 4 mL of a 10% solution used for inhalation or placed directly into the trachea two or three times before the test.
Missed Dose
If you miss a dose of this medicine, take it as soon as possible. However, if it is almost time for your next dose, skip the missed dose and go back to your regular dosing schedule. Do not double doses.
Storage
Store in the refrigerator. Do not freeze.
Keep out of the reach of children.
Do not keep outdated medicine or medicine no longer needed.
Store unopened vials of this medicine in the refrigerator. Do not freeze. An open vial of medicine must be used right away.
The opened container should be discarded after 4 days.
Portions of this document last updated: April 01, 2024
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