Skip to main content
More Search Options
A member of our team will call you back within one business day.
ACETYLCYSTEINE (a se teel SIS teen) is a drug that loosens and thins mucus in the lungs. It is used to make breathing easier in patients with bronchitis, cystic fibrosis, emphysema, tuberculosis, or other lung problems.
This medicine may be used for other purposes; ask your health care provider or pharmacist if you have questions.
They need to know if you have any of these conditions:
stomach ulcer or varices
an unusual or allergic reaction to acetylcysteine, other medicines, foods, dyes, or preservatives
pregnant or trying to get pregnant
This medicine is usually inhaled into the lungs using a nebulizer. In a hospital or clinic setting, a health care provider may put this medicine directly into the lungs through a trachea tube or give by mouth in an emergency. Follow the directions on the prescription label. For inhalation through a nebulizer, dilute with sterile saline or water as directed. You will be taught how to use your nebulizer. Use diluted medicine within 1 hour of mixing. Take your medicine at regular intervals. Do not take your medicine more often than directed.
Talk to your pediatrician regarding the use of this medicine in children. Special care may be needed.
Overdosage: If you think you have taken too much of this medicine contact a poison control center or emergency room at once.
NOTE: This medicine is only for you. Do not share this medicine with others.
If you miss a dose, take it as soon as you can. If it is almost time for your next dose, take only that dose. Do not take double or extra doses.
Interactions are not expected.
This list may not describe all possible interactions. Give your health care provider a list of all the medicines, herbs, non-prescription drugs, or dietary supplements you use. Also tell them if you smoke, drink alcohol, or use illegal drugs. Some items may interact with your medicine.
Tell your doctor or health care professional if your symptoms do not improve or if you get worse. If you are using a nebulizer at home, make sure you understand how to use it properly.
Drink water as directed. This will help to loosen and thin mucus.
Inhalations of this medicine can leave a sticky film in your mouth and on your face. Rinse with water after each treatment.
Side effects that you should report to your doctor or health care professional as soon as possible:
allergic reactions like skin rash, itching or hives, swelling of the face, lips, or tongue
chest tightness, pain
coughing up blood
Side effects that usually do not require medical attention (report to your doctor or health care professional if they continue or are bothersome):
changes in taste
This list may not describe all possible side effects. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.
Keep out of the reach of children.
Store unopened bottles at room temperature between 15 and 30 degrees C (59 and 86 degrees F). If only some of a bottle is used, store the remaining undiluted medicine in a refrigerator. Use open bottles within 96 hours (4 days). Use diluted medicine within 1 hour. Throw away any unused medicine after the expiration date.
ACETYLCYSTEINE (a se teel SIS teen) is used after an acetaminophen overdose to prevent liver damage.
This medicine is usually given by injection into the veins in a hospital or clinic setting. In some situations, a health care provider may also put this medicine directly through a stomach tube or by mouth in an emergency.
Talk to your pediatrician regarding the use of this medicine in children. Although this medicine may be used in an emergency even in very young children and infants, precautions may apply.
Overdosage: If you think you've taken too much of this medicine contact a poison control center or emergency room at once.
This does not apply. Your doses will be given to you in the hospital or clinic. It is very important to take all scheduled doses as directed until the treatment is complete.
Tell your doctor or health care professional if your symptoms do not improve or if you get worse. You will be carefully monitored during your treatment.
low blood pressure
Side effects that usually do not require medical attention (Report these to your doctor or health care professional if they continue or are bothersome.):
changes in taste or smell
flushing of the face
This drug is given in a hospital or clinic and will not be stored at home.
NOTE: This sheet is a summary. It may not cover all possible information. If you have questions about this medicine, talk to your doctor, pharmacist, or health care provider.