Acetylcysteine is a medication that can be used for different purposes depending on the route of administration. Here are some of its uses:

• Inhaled acetylcysteine: 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, and pneumonia.

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

Acetylcysteine is also used as an antidote for acetaminophen toxicity. It is available in different forms such as a solution, concentrated solution, and tablets. The dosage and frequency of use depend on the condition being treated and the route of administration. It is important to follow the instructions of a healthcare professional when using acetylcysteine to ensure its safe and effective use.