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.

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