"ACC akut" refers to a medication containing acetylcysteine, commonly available as effervescent tablets with a dose of 600 mg (and also 200 mg versions for children). It is used as a mucolytic agent to loosen thick mucus in the lungs and bronchi, making it easier for patients to cough it up, especially in cases of bronchitis and respiratory conditions with sticky mucus. Acetylcysteine in ACC akut breaks down disulfide bonds in the mucus, reducing its viscosity. Additionally, it has antioxidant properties that help fight oxidative stress in the respiratory tract. Typically, ACC akut 600 mg is taken once daily by dissolving a tablet in water, often in the morning, to help clear mucus throughout the day. It is considered Germany's number one cough reliever and is well tolerated with a pleasant flavor option in some formulations.