OTC
Mucolytic (mucus thinner)
Acetylcysteine
Last reviewed April 2026
Who is this for?
What is this drug?
Acetylcysteine is a medicine that works by breaking down thick, sticky mucus in your chest and airways, making it easier to cough out. It can also protect the liver from damage caused by paracetamol overdose.
What is it used for?
Chest congestionstubborn cough with thick mucus (catarrh)bronchitisparacetamol (Panadol) overdosechronic obstructive lung disease
Available Over The Counter
Available at pharmacies without a prescription. Rules may vary by country.